With their greater surface-area-to-volume ratio, kids are more vulnerable to heat loss than adults. Add in the greater cold conductivity of water, and the wee ones can get chilled before they know it, what with all that distracting sea life, splashing, and swimming. This shorty wetsuit helps insulate tiny torsos, without spoiling the fun. Its super stretchy neoprene allows excellent mobility and accommodates a range of body shapes.