A man wearing a short-sleeve Marine Layer and navy blue pants

Marine Layer

$$
StyleMinimalist / ContemporaryUrban prep / Ivy
Known forT-shirts & graphic tees
Origin · San Francisco, United StatesMade in · USAFounded · 2009

Marine Layer is a San Francisco casual apparel label founded in 2009 by Michael Natenshon, who set out to recreate the broken-in feel of a worn-out favorite T-shirt. The company develops its own materials — more than 100 proprietary fabrics — across tees, knits, button-downs, outerwear, bottoms and accessories for men and women, with vintage-inspired, laid-back California styling. It sells through e-commerce and 45-plus US retail stores, runs the Re-Spun program that recycles used tees into new yarn, and is B Corp certified.

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How Marine Layer fits
CategoryRunsShapeLengthSize adviceConfidence
Hoodies & sweatshirtsslightly largerelaxed, cozy sweatshirt cut with a generous bodyregular, hitting around the hipTrue to size is fine for layering, but size down if you dislike extra room through the torso.medium
Shirts & overshirtstrue to sizecasual, softly structured button-downs with a regular to slightly relaxed body rather than a tapered cutregular, long enough to tuck but wearable untuckedOrder your usual shirt size; slimmer builds sometimes prefer one size down to avoid billowing at the waist.medium
Trousers & pantstrue to sizeeasy, casual chino and knit-pant silhouettes with a comfortable seat and thighregular inseams; some styles read slightly long and are often hemmedTake your measured waist size and expect a relaxed straight leg rather than a slim one.low
Jacketsslightly largerelaxed casual outerwear cut with room for a layer underneathregular, around the hipStick with your normal size, or size down if you plan to wear it over just a tee.low
T-shirts & graphic teesslightly largerelaxed and slightly boxy through the chest and armhole; the signature soft knits drape rather than clingregular to slightly long in the body, usually covering the belt lineSize down if you want the tee to sit close to the body; stay true to size for the intended broken-in, easy look.medium
Does Marine Layer run big or small?

Marine Layer fits slightly large. Take your normal size for the intended laid-back look, but size down if you want anything close to a slim or trim fit. Most shoppers find Marine Layer roughly true to size but cut on the relaxed, generous side, so people who prefer a fitted look often report going down one size.

How does Marine Layer fit?

Most shoppers find Marine Layer roughly true to size but cut on the relaxed, generous side, so people who prefer a fitted look often report going down one size. Overall shape: relaxed, easy through the chest and waist with a soft drape rather than a tailored line.

How do Marine Layer hoodies & sweatshirts fit?

Marine Layer hoodies & sweatshirts fits slightly large. True to size is fine for layering, but size down if you dislike extra room through the torso. Shape: relaxed, cozy sweatshirt cut with a generous body.

How do Marine Layer shirts & overshirts fit?

Marine Layer shirts & overshirts fits true to size. Order your usual shirt size; slimmer builds sometimes prefer one size down to avoid billowing at the waist. Shape: casual, softly structured button-downs with a regular to slightly relaxed body rather than a tapered cut.

How do Marine Layer trousers & pants fit?

Marine Layer trousers & pants fits true to size. Take your measured waist size and expect a relaxed straight leg rather than a slim one. Shape: easy, casual chino and knit-pant silhouettes with a comfortable seat and thigh.

Directional fit consensus summarized from public sources with AI — a starting point, not a guarantee. Confirm with the product's own measurements before buying.

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