The semi-form fit is intended for versatile layering that will allow anything from a long sleeve baselayer to thermal jersey underneath. Thermal fabric is used in key areas to fine tune perspiration evaporation so you won't get that clammy feeling an hour down the road. This is the best way to get maximum protection from cold, water and wind without sacrificing style or comfort. SELECT 3-layer AmFIB® Softshell fabric is windproof with superior warmth and water resistance Thermal back panels provide insulation and enhance breathability Full-length internal draft flap with zipper garage seals in warmth Single zippered back pocket BioViz® high visibility colors and reflective elements Fabrics: 100% polyester 234 g/m2 Weight (Size M): 353 g XS-XXL Fit - SEMI-FORM FIT