The Aposematic jersey was designed as part of our project with Brett Stenson and was inspired by his fascination with the markings of the Poison Dart Frog family. Comes in Men's and Women's cuts. *We recommend sizing up*. Size chart in the photos. What the manufacturer has to say: 4-way stretch, soft and highly breathable fabric with wonderful wicking properties to keep you cool and dry at all times Nortex Air Fabric: open weave, super wicking, made in Italy 3 Back pockets plus 1 zippered water-proof lined pocket Pockets and back zipper feature reflective piping, adding safety features with visibility up to 160 meters. One finger quick action pull camlock zipper Women's Size Chart Men's Size Chart