Elf, dinosaurs, safari animals are 100% Cotton & are pull on, with cuffs at the wrists & ankles
Red plaid, white plaid, hot air balloons are 100% cotton & have a button front top, drawstring waist, & no cuffs
Papa Bear top is 60% cotton/40% polyester & bottoms are 100% polyester. Top feels like t shirt material & bottoms feel like fleece