Features 1, These unscented swim diapers can fit baby under 2 years old, suitable weight: S(10-18lbs/4.5-8kg), M(18-30lbs/8-13.5kg), L(30-40lbs/13.5-18kg). (a rough guide for reference only). 2, A trim and attractive design that has a terrific fit on any baby. 3x3 snaps to adjust the size. Just perfect for saving your money in the long term. 3, Ela..