These Generation 2 trousers are the perfect match to the matching parka. Sizes from Small to 3XL. Material Specifications: Proprietary three-layer configuration incorporates two different microporous layers. Specially treated base fabric for durable water repellency Layer 1 - "Foam" layer with minuscule micropores improves waterproofness, and durability Layer 2 - Regularly configure micropores increase moisture permeability Layer 3 - Smaller pores in the resin surface enhance waterproofness, strengthen coating surface and inhibit dew condensation. Rothco