Tee Shirt Sizing Guides

2020 BOLDERBoulder Official Race Tee sizing

Our official race tees are made of a 65% polyester, 35% cotton blend for that relaxed feel and fit. 

Wash cold // dry low // run fast // be bold 

2020 BOLDERBoulder Tech Tee sizing

These technical tees will hold up to the rigors of training, while still feeling light, soft and breathable to keep you cool on race day. Made of 92% polyester and 8% spandex, the shirt has a great feel and form. 

2020 BOLDERBoulder Long Sleeve (Unisex) sizing

Our long sleeve shirts are made of a 65% polyester, 35% cotton blend for that relaxed feel and fit. The sleeve cuffs and collar highlight the blue in the shirt design.

Wash cold // dry low // run fast // be bold