The Barrier Short Sleeve Baselayer combines an innovative next-to-skin windproof front panel and Pearl Izumi's PRO Transfer Fabric with Minerale to create a protective layering system When worn under your team kit, Pearl Izumi's Barrier Short Sleeve baselayer offers windproof performance during a race PRO Barrier fabric front panel provides optimal wind protection PRO Transfer fabric with Minerale provides optimal moisture transfer, dry time and odour absorbance UPF 30 sun protection Crew neck Anatomic close-to-body fit Weather forecast: Cold and windy Temperature rating: 8 degrees Fabrics: Body 52% Minerale polyester 48% textured polyester / Barrier Panel: 100% polyester