Sea Change Tee
The ultra-soft, sustainably-spun tee is the heart of Marine Layer — the brand was literally founded to recreate the feel of a worn-in favorite T-shirt.
Explore Sea Change Tees →Brand profile
San Francisco casual apparel brand built on custom soft fabrics, vintage-inspired basics and a tee-recycling program, with 45-plus US stores.
28 brands like Marine Layer like Buck Mason, Bridge & Burn, Everlane →



The brand started in 2009 with the goal of recreating the softness of a favorite broken-in T-shirt, and tees are still what it is best known for.
Over 100 proprietary fabrics run across tees, knits, button-downs, outerwear and bottoms, so the handfeel is the through-line rather than the styling.
The Re-Spun program takes back used tees and turns them into new yarn, and the company holds B Corp certification alongside 45-plus US stores.
The ultra-soft, sustainably-spun tee is the heart of Marine Layer — the brand was literally founded to recreate the feel of a worn-in favorite T-shirt.
Explore Sea Change Tees →Proprietary-fabric overshirts like the Max Moleskin and Pacifica are the brand's go-to layering piece, translating laid-back California styling into soft, textured shirt-jackets.
Explore overshirts →Available atREVOLVR Menswear
Overall fit
slightly large
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.
Tip: Take your normal size for the intended laid-back look, but size down if you want anything close to a slim or trim fit.
Medium confidence · based on 18 sources
By category
| Category | Runs | Shape | Size advice |
|---|---|---|---|
| Hoodies & sweatshirts | slightly large | relaxed, cozy sweatshirt cut with a generous body | True to size is fine for layering, but size down if you dislike extra room through the torso. |
| Shirts & overshirts | true to size | casual, softly structured button-downs with a regular to slightly relaxed body rather than a tapered cut | Order your usual shirt size; slimmer builds sometimes prefer one size down to avoid billowing at the waist. |
| Trousers & pants | true to size | easy, casual chino and knit-pant silhouettes with a comfortable seat and thigh | Take your measured waist size and expect a relaxed straight leg rather than a slim one. |
| Jackets | slightly large | relaxed casual outerwear cut with room for a layer underneath | Stick with your normal size, or size down if you plan to wear it over just a tee. |
| T-shirts & graphic tees | slightly large | relaxed and slightly boxy through the chest and armhole; the signature soft knits drape rather than cling | Size down if you want the tee to sit close to the body; stay true to size for the intended broken-in, easy look. |
Directional fit consensus summarized from public sources with AI — a starting point, not a guarantee. Confirm with the product's own measurements before buying.
87% matchSame soft-tee-and-denim California staples, US-sewn
What changes: Sharper, more classic menswear cuts; no womenswear breadth
74% matchPacific coast casuals with more utility edge
What changes: Workwear/outdoor leaning, smaller range and retail footprint
71% matchSustainability-forward basics, cooler minimalist palette
What changes: Minimalist not vintage-inspired; no proprietary fabric story
68% matchSurf-rooted easy basics with a design-shop feel
What changes: More fashion-minimal and NY-priced, menswear focused
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.
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.
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.
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.
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.
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.