The Stormbreak is our kids Outdoor Adventure longer length waterproof shell jacket. Other downpour shields include taped seams and elasticated cuffs. 100% Polyester. Regatta Kids Sizing (chest approx): 2 Years (53-55cm), 3-4 Years (55-57cm), 5-6 Years (59-61cm), 7-8 Years (63-67cm), 9-10 Years (69-73cm), 11-12 Years (75-79cm), 13 Years (82cm), 14 Years (86cm), 15-16 Years (89-92cm).