50 For Children 1-3 Years Old , Head Circumference (cm/inch) 48cm~51cm / 18.89''-20.07''
52 For Children 3-5 Years Old ,Head Circumference (cm/inch) 50cm~53cm / 19.68"-20.86"
54 For Children 4-9Years Old ,Head Circumference (cm/inch) 52cm~55cm / 20.47"-21.65"
58 For adults , Head Circumference (cm/inch) 55cm~59cm / 21.65"-23.22"
Up-Graded Soft Material --- Made of 50% Merino Wool + 50% Acrylic, softer & stretchable, lightweight & non-deformation, excellent in keeping warm and friendly to skin, which offer you a comfy wearing experience.
Fisherman Style & Hipster's Choice ---The sailor watch cap with the rib-knit cuff design, classic and stylish to any outfit, the most fashionable hat now. Get One!