GORE-TEX waterproof/breathable fabric helps you stay comfortable and focused. Fabric: GORE-TEX 3-layer, 20-denier fabric with ripstop nylon face. Soft, packable GORE C-KNIT backer technology provides comfort and packability. YKK 7/8-Length Side Zips vent for expelling heat and easy on/off with boots on. Streamlined designs for long-last performance. Micro-Taped Seams for weather protection with minimal bulk. Adjustable nylon web belt.