Babygrow: 100% cotton.The fit is Soft and stretchy with poppers for ease of dressing
T-shirt: 70% Cotton 14% Polyester 14%Nylon 2% Lycra
MENS T-SHIRT SIZES (NOTE they do fit on the large size)
Small 36-38" chest (20" flat measurement armpit to armpit)
Med 38 - 40" chest (21" flat measurement armpit to armpit)
Large 40 - 42" chest (22" flat measurement armpit to armpit)
XLarge 42 - 44" chest (23" flat measurement armpit to armpit)
XXLarge 44 - 46"
Babygrow: 0/3mths 53/60cm 3/6mths 60/66cm 6/12mths 66/76cm 12/18mths 76/89cm