The interior consists of 4 layers of soft and absorbent GOTS certified organic cotton the contoured central area covered in waterproof TPU laminate to help keep clothes dry Intended to help catch minor accidents during training, does not replace diaper Add extra absorbency for use at night or on its own for minor accidents Gentle elastic along the legs and waist provides comfort and makes it easier to pull the pants up and down need to wash at least a few times for first use. it is recommended to use it at night only after the fifth wash. can be washed at 60 degrees in the washing machine, spin max 1000 rpm, better 800. do not use bleach, optical brighteners, fabric softeners and perfumes. do not put in the dryer at high temperatures (possibility of using only low temperatures) Small 20-27 lbs (9 -12 kg) Medium 26-35 lbs (12-16 kg) Large 33-45 lbs (15-20 kg) X-Large 42-56+ lbs (19-25 kg)