Northwave Extreme Tech Short Sleeve Jersey MAIN FABRIC: Revolutional + Biomap Seamless inserts ZIP: YKK full opening POCKETS: 3+1 Waterproof ELASTIC: Silicon REFLEX INSERTS: 360? visibility TECH: Biomap construction Our apparel works for you. And thinks with you. Strategically positioned stitching prevents any chafing when cycling. A combination of different fabrics provides enhanced breathability or more protection where it's needed. Plus it ensures muscle compression for improved performance of active muscle groups. We eliminated stitching in some areas to guarantee unrivaled comfort. The fabric has special properties to mimic a second skin and deliver excellent breathability and perfect temperature control. A family of innovative technical fabrics certified by Lycra? Sport that are designed to ensure extreme fluidity of movement and maximum muscular compression. The fabrics are also ultralight, exceptionally fine, breathable and resistant to UV rays (UPF 50+).