Zoggs swimsure nappy blue is designed so can be used in conjunction with a disposable nappy but can also be used in isolation super soft yet snug waist and leg bands are comfortable yet secure to avoid accidents available in sizes small 3 6 months medium 6 9 months large 9 12 months xl 12 18 months xxl 18 24 months neoprene body outer 80 polyamide 20 elastane