Where 11" sits on the EN scale
EN ISO 21420 sizes are one inch of circumference apart, so an 11-inch hand is exactly size 11: the table’s 279 mm reference with a typical length of 215 mm.
Size 11 is XXL on unisex lines and 3XL on women’s lines, which are cut a letter smaller for the same hand.
11" × 25.4 = 279 mm round flat width ≈ 279 ÷ 2.42 = 115 mm (men)
Sport, ride and winter
Goalkeeper gloves add an inch: 11" rounds to 11 and becomes size 12 (Reusch’s half-size chart: 11). Alpinestars’ men’s chart puts 27.9 cm at 3XL, on the edge of a band: try both. Hestra winter gloves are an 11 bare, 11 over a 1 mm liner.
Boxing gloves at 11" are youth sizes (Rival youth 8–10 oz) or below the adult hand bands.
One half size down, 10.5" is EN 11 and goalie 12. One up, 11.5" is EN 12 and goalie 13.