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"First Layer, excellent material and very comfortable"
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Use this size guide to find the right size for your body measurements. All measurements are in Inches. *Indicates outerwear only.
| Size | Chest | Neck | Sleeve |
|---|---|---|---|
| XS | 33"-35" | 13.5" - 14" | 32" - 33” |
| S | 36"-38" | 15.5" - 16" | 33" - 34" |
| M | 39"-41" | 16" - 16.5" | 34" - 35" |
| L | 42"-45" | 16.5" - 17" | 35" - 36" |
| XL | 46"-48" | 17.5" - 18" | 36" - 37" |
| XXL | 49"-51" | 18.5" - 19" | 37" - 38" |
| 3XL | 52"-54" | 19.5" - 20" | 37" - 38" |
| 4XL | 55"-57" | 20.5" - 21" | 37" - 38" |
| Size | Waist | Inseam |
|---|---|---|
| XS | 26" - 28" | 28" |
| S | 29" - 31" | 30" |
| M | 32" - 34" | 31" |
| L | 35" - 37" | 32" |
| XL | 38" - 41 | 33" |
| XXL | 42" - 44" | 33" |
| 3XL | 45" - 47" | 33"* |
| 4XL | 48" - 50" | 33"* |
| Size | Head Circumference |
|---|---|
| S/M | 21.25"-22.75" |
| L/XL | 22"-23.5" |
| One Size | 21.25"-23.5" |
| Size | Hand - Circumference in CM | Hand - Length in CM |
|---|---|---|
| XS | 18 - 19 | 6 - 17 |
| S | 19 - 21 | 17 - 19 |
| M | 21 - 22 | 19 - 20 |
| L | 22 - 24 | 20 - 21 |
| XL | 24 - 26 | 21 - 23 |
| 2XL | 26+ | 23+ |
| - | - | - |
| S/M | 18 - 22 | 16 - 20 |
| L/XL | 22 - 26+ | 20 - 23+ |
*These are body measurements. Not all items are offered in all sizes
How to measure
Chest: Measure around the fullest part of your chest, keeping the tape level and snug under your arms
Neck: Wrap the tape around the base of your neck where a collar would sit - don't pull too tight.
Sleeve: With your arm relaxed at your side, measure from the center back of your neck over the shoulder and down to your wrist.
HATS- Measure around your head, right above your eyebrows
Moisture-wicking next-to-skin layer that keeps you dry, warm, and unrestricted all day.
Simms' Lightweight Baselayer Top is the essential next-to-skin layer for building a rock-solid foundation that prioritizes all-day mobility, warmth and wicking.
• Jersey knit brushed polyester combined with sustainable odor control and speed dry moisture management for maximum next to skin comfort
• Raglan sleeves for optimal fit and movement
• Flatlock seam construction for next to skin comfort
$4.98 Unlocks Easy Returns
Simms offers returns on items purchased from the simmsfishing.com website within 60 days. When placing your order, you will have the option to pay $4.98 to avoid additional handling fees should you or a gift recipient need to return any or all items. Alternatively, you may return your item(s) for the flat rate of $11 at the time of return.
Find out more about our easy online returns process here or start a return now.
Items purchased on final clearance, stickers, certain oversize items and custom wader orders are not eligible for returns.
Select oversize and odd-shaped items are not eligible for free shipping on returns as noted in the product description.
Canadian shoppers, please note:** All sales are final. Flat rate fee options are not available for customers outside of the United States.
Machine wash and dry. See garment label for details.
Visit our Warranty & Repairs page for full details, start a ticket, or to contact the Bozeman, Montana based customer service team with questions.
You can extend the life of your waders, outerwear and gear with the right care. Check out our tips on topics like wader care and videos on in-field DIY Repairs.
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Overall rating: 4.9166665 / 5 from 12 reviews.
Review topics: ["layer","quality","sleeves"].
"First Layer, excellent material and very comfortable"
— Jorge B. (4/5)
"Good quality"
— Dmitrii M. (5/5)
"Was looking for a heavier weight base layer. Got these bc they were on sale. Def warm. Bought two, been cycling them out almost everyday for a couple weeks, including 4 ice fishing trips. Nice enough to wear as a reg long sleeve shirt. Not so stretchy. Solid, stiffer fabric. Def preferred compared to my old school long jon style."
— Luke P. (5/5)
"I love it so much I bought two! Warm, Comfortable and useful in just about every environment and situation."
— Chad S. (5/5)
"My favorite base layer for years. To bad simms not selling anymore. This bad news for me"
— John I. (5/5)
"We are having a big winter in western New York. My biggest steelhead creek, which generally runs 250 to 400 CFS, is even pretty iced over. I've been wearing my light weight base layer cross country skiing. The top is silky comfortable and kept me dry when heating up on my climbs skiing. The top runs small. Had to reorder a size up. Happy now."
— Jeffrey A. (5/5)
"This is a very soft and comfortable long sleeve shirt— l sometimes use it as the first shirt I put on when layering in cold weather on a guided fishing trip while running on the water."
— DANNY G. (5/5)
"M’s lightweight base layer keeps you very warm when used with a polar fleece and a rain jacket it’s very comfortable wicks perfectly on those cold rainy days when you are in it all day."
— LeeRoy B. (5/5)
"This is what I wear. Core warmer"
— John I. (5/5)
"Good quality not heavy won’t restrict movement"
— Ann P. (5/5)
For more than three decades, Simms has set the standard in waders, footwear, outerwear, and sportswear — gear designed and developed to help anglers maximize every second they spend on the water. You Get One Life. Fish It Well.
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