Simms Vest Guide: Finding Your Perfect Fit
Navigating the world of Simms vests requires understanding their sizing nuances, as reports suggest they can run small or large.
Finding the ideal fit ensures comfort and functionality during your fishing adventures, so careful measurement is key.
Consider chest, shoulder, and potentially waist measurements, referencing Simms’ specific size charts for each vest model.
Account for layering with clothing to guarantee a comfortable and unrestricted range of motion on the water.
Authorized Simms dealers and professional fitting services can provide expert guidance, helping you select the perfect vest for your build and needs.
Simms Fishing Products has become synonymous with quality and innovation in fly fishing apparel, and their vests are no exception.
For decades, anglers have relied on Simms vests to carry essential gear, providing convenient access to tools, flies, and accessories while on the water.
These vests aren’t simply storage solutions; they are thoughtfully designed systems built for the demands of a full day on the river.
From lightweight options for minimalist anglers to feature-rich guide vests, Simms offers a model to suit every fishing style and preference.
Understanding the nuances of Simms vest sizing is crucial, as feedback indicates variations between models and potential discrepancies in fit.
Reports suggest some vests run small, particularly in larger sizes, while others may offer a more generous cut.
Therefore, accurate measurement and careful consideration of layering are essential for finding your perfect fit.
This guide will delve into the specifics of Simms vest sizing, providing comprehensive charts, measurement guidelines, and solutions to common fitting issues, ensuring you’re well-equipped for your next fishing excursion.
What is a Simms Vest Used For?
Simms fishing vests are designed to be a mobile, organized extension of the angler, providing convenient access to essential gear during a day on the water.
They eliminate the need to constantly return to a pack or bankside bag, streamlining the fishing experience and maximizing time spent casting.
Primarily, vests serve as a carry system for fly boxes, leaders, tippet spools, floatant, tools like nippers and forceps, and personal items.
Pockets are strategically placed for quick access to frequently used items, enhancing efficiency and responsiveness on the river.
Beyond gear storage, Simms vests often incorporate features like integrated net slots, D-rings for accessories, and comfortable padding for all-day wear.
Different models cater to specific needs; guide vests offer maximum capacity, while lightweight vests prioritize minimalism and freedom of movement.

Ultimately, a Simms vest is about enhancing the angler’s connection to the environment, allowing them to focus on the art of fly fishing without being burdened by cumbersome gear management.

Understanding Simms Vest Sizing
Accurate sizing is crucial for Simms vests, as fit can vary between models and reported inconsistencies exist. Careful measurements and
consulting size charts are essential for optimal comfort and performance.
General Simms Sizing Philosophy
Simms generally aims for a performance-oriented fit, meaning their vests are designed to be functional during active use, rather than overly roomy. However, customer feedback indicates a degree of variability. Some users report Simms vests running small, particularly in the shoulder and chest areas, while others find the sizing to be true-to-size or even slightly generous.
This inconsistency highlights the importance of precise self-measurement and careful comparison with Simms’ official size charts. It’s also worth noting that sizing can differ between specific vest models – the G3 Guide Vest may fit differently than the Vest Pack or Lightweight Vest. Therefore, relying on a general “Simms size” isn’t advisable.
The brand often utilizes a combination of chest, shoulder, and sometimes waist measurements to determine the appropriate size. Considering you’ll likely be wearing layers beneath the vest, especially during colder weather, it’s generally recommended to size up if you fall between sizes or prefer a more relaxed fit. Prioritizing freedom of movement and comfort is key for a positive on-the-water experience.
Simms Vest Size Charts: A Comprehensive Overview
Simms employs size charts varying slightly by vest model, but generally centers around chest and shoulder measurements. A common chart presents sizes like S, M, L, and XL, correlating to chest measurements ranging from 36-38 inches (S) to 46-48 inches (XL). Shoulder measurements typically span 17 inches (S) to 20 inches (XL).
Specific charts detail measurements for fly vests, with sizes aligning to chest dimensions of 32-38 inches (XS/S) up to 49-55 inches (XL/2XL). Men’s fly vests often specify both chest and across-shoulder measurements, like 36-38 inch chest with a 14.5-15 inch shoulder for size S.
It’s crucial to consult the chart specific to the vest you’re considering, as discrepancies exist. Simms provides these charts on their website and through authorized dealers. Remember, these are guidelines; individual builds may necessitate adjusting based on layering needs and personal preference for fit.

Chest Measurement Guidelines
Accurate chest measurement is paramount for selecting the correct Simms vest size. Use a flexible measuring tape, ensuring it’s snug but not tight around the fullest part of your chest, typically across the nipples. Maintain a horizontal tape position, keeping your arms relaxed and at your sides.

Record the measurement in inches. Refer to the specific vest’s size chart, noting the chest range associated with each size (e.g., 36-38 inches for Small, 42-45 inches for Large). If your measurement falls between sizes, consider your layering intentions.
For layering, opt for the larger size to accommodate additional clothing. Simms charts often indicate chest ranges, like 42-45 inches correlating to a size 16.5-17, or 46-48 inches to a size 17.5-18. Double-check the chart, as variations exist between vest models.
Shoulder Measurement Guidelines
Determining your shoulder width is crucial, especially if you’re between sizes on the chest measurement. To measure, find the bony prominence at the end of your shoulder (acromion process) on both sides. Use a flexible measuring tape, extending horizontally between these points.
Ensure the tape runs straight across your back, maintaining a comfortable, natural posture. Record this measurement in inches. Simms size charts often include “Across Shoulder” dimensions. For example, a Small might correspond to 17 inches, while an XL measures 20 inches.
If your shoulder measurement aligns with the upper end of a size range, and you plan to layer, consider sizing up. Pay attention to vest-specific charts, as shoulder dimensions can vary. A well-fitted shoulder ensures the vest doesn’t bind or restrict arm movement during casting and other activities.
Waist Measurement Guidelines (If Applicable)
Not all Simms vests require a waist measurement, as many are designed with adjustable straps or a more relaxed fit. However, for models featuring a waist belt or more structured design, accurate measurement is essential for optimal comfort and functionality.
Measure your natural waistline – typically the narrowest part of your torso, usually an inch or two above your belly button. Stand naturally and exhale, then wrap a flexible measuring tape around your waist, ensuring it’s snug but not constricting. Record the measurement in inches.
Compare your waist measurement to the Simms size chart for the specific vest model. Consider whether you’ll be wearing layers underneath, and adjust accordingly. A properly fitted waist ensures the vest sits securely and doesn’t interfere with movement or wading.
Specific Simms Vest Models and Their Sizing
Simms offers a range of vests, each with unique sizing considerations. The G3 Guide Vest, a popular choice, often receives feedback about running slightly small, suggesting sizing up may be necessary, particularly for broader shoulders or those planning to layer extensively. Chest measurements are crucial for this model.
The Vest Pack, designed for streamlined functionality, tends to have a more athletic fit. Referencing the Simms size chart and prioritizing chest and shoulder measurements is vital. Lightweight vests, prioritizing breathability, generally offer a more forgiving fit, but still require accurate chest and shoulder measurements.
Always consult the specific size chart for the model you’re considering, as variations exist. Pay attention to customer reviews, which often provide valuable insights into real-world fit experiences.
Simms G3 Guide Vest Sizing
The Simms G3 Guide Vest is renowned for its functionality, but sizing can be tricky. Many anglers report that this vest runs small, particularly for those with broader builds or those intending to wear layers underneath. Accurate chest measurement is paramount, as this vest is designed for a closer fit.

Simms’ size chart indicates chest measurements of 42-45 inches correspond to a size Large, while 46-48 inches fit an XL. However, consider adding an inch or two to your chest measurement if you prefer a more relaxed fit or plan to wear bulky layers. Shoulder measurements are also important, ensuring the vest doesn’t restrict movement.
Reviewing customer feedback suggests that sizing up is often recommended. Prioritize a comfortable range of motion, especially during casting and retrieving. Don’t hesitate to consult with a Simms dealer for personalized fitting advice.
Simms Vest Pack Sizing
The Simms Vest Pack offers a streamlined, minimalist approach to fly fishing vests, focusing on essential gear carrying. Sizing for this model tends to be more standardized, but still requires careful attention to ensure a secure and comfortable fit. Chest measurement remains the primary factor in determining the correct size.

Generally, a chest measurement between 36-38 inches corresponds to a size Small, 39-41 inches to a Medium, and 42-45 inches to a Large. However, the Vest Pack’s design allows for some adjustability through its shoulder and waist straps. Consider your layering intentions; if you anticipate wearing bulky clothing, opting for the next size up is advisable.
Unlike some other Simms vests, reports of the Vest Pack running significantly small are less common. Focus on achieving a snug, yet unrestricted fit, allowing for freedom of movement during casting and wading. Consult the official Simms size chart for the most accurate guidance.
Simms Lightweight Vest Sizing
Simms Lightweight Vests prioritize breathability and minimal bulk, making them ideal for warmer weather fishing. Sizing for these vests often aligns closely with standard chest measurements, but individual models can vary slightly. Accurate measurement is crucial, as the lightweight construction offers less inherent adjustability compared to more robust vests.
Typically, a chest circumference of 36-38 inches corresponds to a Small, 39-41 inches to a Medium, and 42-45 inches to a Large. Pay close attention to the “Across Shoulder” measurement as well, particularly if you have broader shoulders. The Simms size charts provide detailed specifications for each Lightweight Vest model.
Some anglers report these vests can feel snug, so if you’re between sizes or plan to layer, consider sizing up. Ensure the vest doesn’t restrict arm movement or feel overly tight across the chest. Prioritize comfort and functionality for an enjoyable fishing experience.
Common Sizing Issues & Solutions
Many anglers find Simms vests run small, necessitating sizing up, while others experience a looser fit. Adjusting straps and considering layering can resolve these issues for optimal comfort.
Simms Vests Running Small: What to Do
Numerous reports indicate that Simms vests, particularly popular models like the G3 Guide Vest, frequently run on the smaller side. If you find yourself between sizes, or consistently wear a larger size in other brands, opting for the next size up is generally recommended. Don’t rely solely on your usual shirt size; precise measurements are crucial.
Before resorting to an exchange, fully try on the vest with the layers you anticipate wearing during fishing – a base layer, fleece, or light jacket. Check for restrictions in shoulder movement or tightness across the chest. If you can barely zip it up or feel constrained, it’s likely too small.
Consider that some users have noted significant size discrepancies even within the same vest model. Carefully review the Simms size chart, paying close attention to chest and shoulder measurements. If you’re still unsure, contacting an authorized Simms dealer for personalized advice is a wise decision. They can offer guidance based on your specific body type and the vest you’re considering.
Simms Vests Running Large: Adjusting the Fit
While less common, some anglers find that certain Simms vest models fit a bit larger than expected. If your vest feels loose, don’t immediately assume you need a smaller size. Simms vests often incorporate adjustable features designed to fine-tune the fit.
Utilize the adjustable straps located on the shoulders and sides of the vest. Tightening these straps can cinch the vest closer to your body, improving both comfort and functionality. Pay attention to how the vest feels when you’re actively moving, simulating casting motions.
If adjustments aren’t sufficient, wearing a heavier base layer or a fleece underneath can help fill out the vest and create a more snug fit. Consider that a slightly looser fit might be preferable for warmer weather, allowing for better ventilation. However, ensure the vest doesn’t impede your range of motion or interfere with your fishing activities.
Sizing for Layering: Account for Clothing
A crucial aspect of achieving the perfect Simms vest fit is anticipating the clothing you’ll wear underneath. Consider the layering system you typically employ during your fishing trips. Will you be wearing a lightweight long-sleeve shirt, a fleece, or a heavier jacket?
When measuring yourself, wear the type of clothing you’d normally wear while fishing. Adding an extra inch or two to your chest and shoulder measurements can accommodate bulky layers, preventing the vest from feeling restrictive. Remember, a vest that fits comfortably over layers is far more practical than one that’s too tight.
Simms vests are designed to provide freedom of movement, but this is compromised if you don’t account for additional clothing. Prioritize comfort and functionality by ensuring the vest allows for a full range of motion, even when fully layered up. Don’t underestimate the impact of layering on the overall fit!
Measuring Yourself for a Simms Vest
Accurate self-measurement is paramount for a proper fit; focus on chest and shoulder dimensions using a flexible measuring tape. Consult Simms’ charts!
How to Accurately Measure Your Chest
To obtain an accurate chest measurement for your Simms vest, stand naturally with your arms relaxed at your sides. Have a friend assist you for the most precise reading, though self-measurement is possible with care.
Wrap a flexible measuring tape around the fullest part of your chest, ensuring it’s level and snug, but not constricting. Avoid measuring over clothing, as this will add unnecessary bulk to the measurement. Breathe normally during the measurement process; do not hold your breath or flex your chest muscles.
Record the measurement in inches, rounding to the nearest half-inch. Refer to the Simms size chart for the corresponding vest size based on your chest measurement. Remember that different vest models may have slightly different sizing recommendations, so always check the specific chart for the vest you are considering. Consider that sizes can range from 32-38 inches for XS/S to 49-55 inches for XL/2XL, and 36-38 to 46-48 inches for standard sizing.
How to Accurately Measure Your Shoulders
Accurately measuring your shoulders is crucial for a comfortable Simms vest fit, particularly as shoulder width impacts vest mobility. Ideally, have a friend assist, but self-measurement is achievable with attention to detail.
Locate the bony prominence at the end of your shoulder (acromion process) on both sides. Wrap a flexible measuring tape around your back, passing over these points. Ensure the tape is level and snug, but not tight, allowing for natural shoulder movement.
Record the measurement in inches, rounding to the nearest half-inch. Consult the Simms size chart, noting the “Across Shoulder” measurement. Sizes typically range from 17 inches for a Small to 20 inches for an Extra Large. Remember, shoulder measurements are vital for vests, as an improper fit can restrict casting or cause discomfort. Consider that a vest running small may particularly affect shoulder fit, so prioritize accuracy.
Using the Simms Size Chart Effectively
Mastering the Simms size chart is paramount to securing the correct vest fit. Don’t assume your usual clothing size translates directly; Simms sizing can vary between models. Locate the chart specific to the vest you’re considering – G3 Guide, Vest Pack, or Lightweight – as dimensions differ.
Compare your chest and shoulder measurements (and waist, if applicable) to the chart’s ranges. If you fall between sizes, consider your layering intentions. For layering, opt for the larger size to accommodate extra clothing without restriction. Pay attention to the chart’s details, noting any specific fit recommendations.
Remember reports indicate Simms vests sometimes run small, so carefully review customer feedback. Utilize the chart as a guide, but also consider seeking advice from authorized dealers or experienced anglers. A well-utilized chart minimizes returns and maximizes on-water comfort.

Where to Buy and Get Fitted
Locate authorized Simms dealers for a wide selection and expert advice. Consider professional fitting services to ensure a precise fit, maximizing comfort and performance on the water.
Authorized Simms Dealers
Finding a reputable authorized Simms dealer is crucial for ensuring you receive genuine products and expert guidance. These dealers are specifically trained on Simms’ sizing and features, offering personalized assistance to help you select the perfect vest. They can provide hands-on fitting experiences, allowing you to try on various models and sizes to determine the best fit for your body type and intended use.
Many dealers also carry a comprehensive range of Simms accessories, complementing your vest with essential items like fly lines, leaders, and wading gear. To locate an authorized dealer near you, utilize the store locator feature on the official Simms Fishing Products website. This tool allows you to search by zip code or city, providing a list of nearby retailers with contact information and store hours. Remember to check dealer websites for current promotions and events.
Supporting authorized dealers ensures you’re investing in quality products backed by Simms’ warranty and customer support. Avoid purchasing from unauthorized retailers, as these may offer counterfeit or outdated products without the same level of service.
Professional Fitting Services
For anglers seeking a precise and personalized fit, professional fitting services offer an invaluable resource. These services, often available at specialized fly fishing shops or outfitters, employ trained professionals who understand the intricacies of Simms vest sizing and body types. They utilize precise measurement techniques, going beyond standard chest and shoulder measurements to assess your unique physique and layering needs.
A professional fitting will consider your intended use – whether it’s for technical fishing, casual wading, or extended float trips – to recommend the most appropriate vest model and size. They can also advise on adjustments and modifications to optimize comfort and functionality. This is particularly beneficial given reports that Simms vests can sometimes run small, requiring careful consideration.
Investing in a professional fitting can save you the hassle of returns and exchanges, ensuring you get the perfect vest the first time. It’s a worthwhile investment for serious anglers who demand the best possible performance and comfort on the water.