Mountain Warehouse Kids Forest Shield Waterproof Jacket. Embark on adventures big and small with the Forest Waterproof Jacket, a steadfast companion for young explorers braving the elements. Crafted from durable 100% polyester ripstop fabric, this jacket boasts IsoDry technology, taped seams, and a DWR finish for superior waterproof and breathable performance. Available in sizes 2-3 Years: 22 in, 5-6 Years: 24 in, 9-10 Years: 28.5 in, and 13 Years: 33 in. Ref: UTMW5985