Windproof ultra warm and high performance 16.8oz / 570 GSM wool blend softshell material is a innovative 3 Layer material with waterproof TPU lamination; Built in stretch for ultimate comfort; Agion Active X2 anti-odor and antimicrobial technologies provide the ultimate protection against human odors; DWR - durable water resistant treated for added water resistant protection; Stretch comfort waistband; Crotch gusset for added comfort; YKK zipper opening pockets; Vulcanized Rubber Boot with Neoprene liner; Felt Insole