Under Armour Men's UA Wolfe Jacket 100g Primaloft&#174; insulation is lightweight, water-resistant, and breathable, with the ability to be compressed without losing it's superior warmth UA Storm gear uses a Durable Water Repellent (DWR) finish, which repels water without sacrificing breathability Smooth outer layer protects the insulation from excessive moisture Sleek inner layer makes layering easy without losing the comfortable hand feel Secure 2-way entry pockets with warm interior