2-Layer, 20k waterproof shell bibs Technical, versatile, and the extra coverage of bibs. The women's Burton Reserve 2L Bib Pants are the shell pants you can build your winter layering system around. Fully-taped seams and two-layer 20k/20k storm protection make for a warm, dry world when paired with the base layer of your choice. A complete package of rider-designed features gives you all the venting, adjustability, and functional pockets you need to dial in your comfort on the mountain. Features: A not-too-tight or too-baggy fit that makes it feel just right. Recycled polyester shell fabric with 20K/20K membrane keeps you dry and comfortable in all weather conditions. Everything about these bibs is tuned for riding, including taped seams, zip thigh vents, jogger cuffs, and a great selection of pockets. Product meets Bluesign® approved safety and environmental standards in manufacturing.