Aqualung Wave Junior Shorty 4MMAqua Lung Wave Junior Jumpsuit The key to stoking a lifelong desire for adventure in kids is to provide a small amount of challenge, create opportunities for wonder, and minimize discomfort. Thats why weve designed an ultra stretchy, low bulk kids wetsuits available in 4mm thicknesses thick to keep small bodies insulated. Give them the chance to reach for something new. Technical Features 7mm 4mm ultra stretch neoprene easy to pull on and off.