A highly technical development for the harshest conditions. Perfect for fast-paced training and racing through the deepest of winter. The PAS Mechanism Deep Winter Long Bib features a revised fit around the knee and lower leg as well as the waist. The Windtex Pro Membrane used in the 3-layer main fabric adds a stretchable feel, creating an optimal fit. The advanced back of the fabric uses a brushed fleece in a grid structure for extra insulation and warmth, while still allowing you to breathe. The soft elastic straps and mesh back panel create the best possible conditions for your choice of base layer and outer layers to work with you.