A man wearing a graphic Diamond Supply Co. t-shirt with a skateboard in hand

Diamond Supply Co.

$$
StyleSkatewearStreetwear
Known forHoodies & sweatshirtsT-shirts & graphic tees
Origin · Los Angeles, USAMade in · AsiaFounded · 1998

Diamond Supply Co. is a skate and streetwear label started by Nicholas "Nick Diamond" Tershay, who began selling skateboard hardware from a San Francisco apartment before moving the business to Los Angeles in 2000. The range covers graphic tees, hoodies, headwear and denim alongside bolts, bearings and decks, built around the diamond mark and a Tiffany-blue palette. A 2005 Nike SB "Tiffany" Dunk collaboration carried it into sneaker culture, and it has since sponsored pro skaters and licensed the name for outside products.

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How Diamond Supply Co. fits
CategoryRunsShapeLengthSize adviceConfidence
Jeans & denimtrue to sizestraight to slim skate-friendly cut depending on modelregular inseam, often worn stackedTake your measured waist size and check the specific model, as fits range from slim to straight.low
Hoodies & sweatshirtstrue to sizeregular to relaxed, roomy through the bodyregular, hits around the hipStick with your usual size unless you layer heavily underneath, in which case go up one.medium
Jacketsslightly largerelaxed coach-jacket and workwear-style cutsregularConsider your true size or one down if you prefer a trimmer fit, since outerwear is cut with layering room.low
T-shirts & graphic teestrue to sizeregular, mildly boxy chest with a straight bodyregular body lengthOrder your normal tee size; size up one if you want the modern oversized skate drape or wash hot.medium
Does Diamond Supply Co. run big or small?

Diamond Supply Co. fits true to size. Take your usual US size, and consider one up if you want the looser skate silhouette or expect cotton shrinkage after hot washes. Most shoppers report Diamond Supply pieces fit close to standard US streetwear sizing, with a regular-to-slightly-boxy cut and occasional shrinkage on heavier cotton tees and fleece.

How does Diamond Supply Co. fit?

Most shoppers report Diamond Supply pieces fit close to standard US streetwear sizing, with a regular-to-slightly-boxy cut and occasional shrinkage on heavier cotton tees and fleece. Overall shape: regular to slightly boxy, standard American skate-brand cut.

How do Diamond Supply Co. jeans & denim fit?

Diamond Supply Co. jeans & denim fits true to size. Take your measured waist size and check the specific model, as fits range from slim to straight. Shape: straight to slim skate-friendly cut depending on model.

How do Diamond Supply Co. hoodies & sweatshirts fit?

Diamond Supply Co. hoodies & sweatshirts fits true to size. Stick with your usual size unless you layer heavily underneath, in which case go up one. Shape: regular to relaxed, roomy through the body.

How do Diamond Supply Co. jackets fit?

Diamond Supply Co. jackets fits slightly large. Consider your true size or one down if you prefer a trimmer fit, since outerwear is cut with layering room. Shape: relaxed coach-jacket and workwear-style cuts.

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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