Smartwool Sizing    Men's Smartwool Sizing   Small Medium Large X-Large XX-Large Chest 36-38 39-41 42-45 46-49 50-52 Sleeve 31-32 32-33 34-35 35-36 37-37 1/2 Waist 29-30 32-33 34-36 37-39 1/2  40-43 Inseam 29-32 30-33 31-34 32-35  32-35   Women's Smartwool Sizing     X-Small Small Medium Large X-Large USA Size 2 4-6 8-10 12-14 16 Chest 32-34 34-35 36-38 39-40 41-42 Sleeve 30-31 31-32 32-33 33-34 34-35 Waist 24-25 26-27 28-30 31-33  33 1/2-34 Hip 34-35 36-37 38-40 40 1/2-42 1/2 43-44 Inseam 27-30 28-31 29-32 30-32 1/2  30-32 1/2