Insulation: [body] 135g Fiberdown (synthetic), [sleeves] 65g Fiberdown (synthetic) * Venting: Control Zone Ventilation * Pockets: [exterior] 2 tricot-lined hand-warmer, chest, 1 hidden chest, [internal] 1 zip stash, 1 cell phone * Material: [membrane/laminate] HydroBlock X, [face fabric] polyester, DuroGuard DWR treatment * Fit: slim