Smartwool Women's PhD Run Capri wool Women's sizes: X-Small = size 2, 24-25" waist, 32-33" chest. Small = size 4-6, 26-27" waist 34-35" chest. Medium = size 8-10, 28-30" waist 36-38" chest. Large = size 12-14, 31-32" waist 39-40" chest. X-Large = size 16, 33-34" waist 41-42" chest. Form fit, mid rise waist. UPF 50+. Women's specific wide waistband and crotch gusset for comfort and flattering fit. Internal drawcord for adjustability. Sculpted back leg opening for increased range of motion. Knitting method concentrates merino wool against the skin and nylon/elastane against the elements. Reflective Smartwool logo. Inseam size Medium = 18.5 inches. 24% merino wool, 56% nylon, 20% elastane.