Hayabusa S4 boxing gloves size chart

Body weight Size
up to 50 kg 10 oz (XS)
50 to 63 kg 12 oz (S)
63 to 75 kg 14 oz (M)
More than 75 kg 16 oz (L)

Hand circumference (just below the knuckles) Size
up to 20 cm 10 oz (XS)
20 to 22 cm 12 oz (S)
22 to 24 cm 14 oz (M)
greater than 24 cm 16 oz (L)