Bauer REAKT65 HelmetSmall : (6 3/4 - 7 1/8, hat size) (21 1/8" - 22 1/4" circumference) (53.5 - 56.5cm)Medium : (7 - 7 1/2, hat size) (22" - 23 5/8" circumference) (56 - 60cm)Large : (7 1/2 - 8, hat size) (23 3/8" - 25 1/4" circumference) (59.5 - 64cmOfficials Wearhouse OWRP PantWaist Size : (XS 26"-30") (Small 29"-33") (Medium 32"-36") (Large 35"-39") (XL 39"-44")CCM M-150 SweaterWe suggest ordering one to two sizes larger than a normal size t-shirt that you wear.