None 4.5 – 5.0” wrist (115 – 127mm) = 100/60mm -> Lady Short Size 5.0 – 5.5” wrist (127 – 140mm) = 105/65mm -> Lady Large Size 5.5 – 6.0” wrist (140 – 150mm) = 115/65mm -> XS Size 6.0 – 6.5” wrist (150 – 164mm) = 120/70mm -> Short Size 6.6 – 7.0” wrist (165 – 178mm) = 125/75mm -> Regular Size 7.1 – 7.5” wrist (179 – 190mm) = 130/80mm -> Large Size 7.6 – 8.0” wrist (191 – 203mm) = 135/80mm -> Xtra Large Size 8.1 – 8.5” wrist (204 – 216mm) = 140/85mm -> XX Large Size 8.6 – 9.0” wrist (217 – 229mm) = 145/90mm -> XXX Large Size