Lightweight, windproof, and highly breathable, up to 250% warmer than a non-windproof eece.Key Features of the Burton AK Blitzer Windstopper Jacket: DRYRIDE Thermex Interlock Fabrication WINDSTOPPER Lining Highly Breathable for Accelerated Moisture Wicking Hood with Draw Cord Oversized Kangaroo Handwarmer Pockets