The foundational layering-system piece. Wear alone in cool temps or in tandem with heavier base or mid layers in colder weather. Your first layer of defense in the battle against the brrrrr, the lightweight Strata 160 Bottom keeps you warm, mobile, and ready to fish in a naturally inviting, temperature-regulating wool and synthetic fabric blend. 4-way stretch polyester knit with wool for warmth and moisture management Low-profile flatlock stitched seams for next-to-skin comfort Comfortable elastic waistband Treated with wicking and quick-dry finish Treated with an anti-microbial finish which prevents odor build-up Fabric Tech: Main: 92% POLYESTER, 8% WOOL stretch knit; Gusset and Back Yoke: 92% POLYESTER, 8% Elastane Stretch Jacquard Mesh Size Waist Inseam XS 26" - 28" 28" S 29" - 31" 30" M 32" - 34" 31" L 35" - 37" 32" XL 38" - 41 33" XXL 42" - 44" 33" 3XL 45" - 47" 33"* 4XL 48" - 50" 33"*