For blazing through the backcountry and beyond, the 686 Men's Hot Lap Insulated Bibs use Polyfill  infiLOFT® body Insulation and waterproof, double-layered  ifnfiDRY® 15K Fabric moves moisture away from you for maximum defense. Fully taped at the seams for reliable protection, the Air-Flo™ inner leg vents bring in fresh air to keep you cool, while the 500D Horseshoe Hem™ adds toughness so you can take on the trails.