Basic Sizing Chart: ; Measure your middle finger from the webbing between the adjacent finger to the tip of the finger.; 3.5" + = XL; up to 3.5" = L; up to 3" = M; up to 2.5" = S * Sizing and Fit Tips: Measure your middle finger from the webbing between the adjacent finger to the tip of the finger: XL = 3.5+ inches; L = 3-3.5 inches; M = 2.5-3 inches; S = up to 2.5 inches