AscentShell™ technology uses an advanced manufacturing process to create a 3-layer construction that breathes faster, weighs less, and stretches more than traditional waterproof membranes—delivering exceptional comfort without sacrificing protection. Quiet and flexible, AscentShell™ feels like a soft shell while performing like a hard shell. Its air-permeable design releases perspiration and excess heat during high-output activity, while the lightweight build helps conserve energy on demanding pursuits.