Fit Tip - Our Micro Elite Chamois boot length base layer features a snug, body fitting silhouette for exceptional moisture management. If you are in-between sizes - order up one size. Fly front. Compression front knee Power mesh vented back knee Moisture transfer fibers to move moisture away from the skin Smooth face & napped back for easy layering & extra warmth without bulk 4-way stretch for unlimited movement UPF 30 protection Body fit design for next-to-skin performance fit Hot Chillys two tone microfiber logo elastic waistband with plush back Gusset eases movement & reduces seam bulk Engineered boot tech length eliminates bulk inside boots Midweight warmth, body fit Inseam size medium - 20" Hot Chillys Premiere Boot Tech Tight Mens