It is fully weatherproof, wind resistant, water resistant, UV protective and oversized. It has a 170 gm Waterproof PU coated outer shell, fully taped waterproof seams, with a 340 gm sherpa fleece lining. External and internal fleece lined zipped pockets and a heavy duty 2-way zip. Available in sizes XS-XL As a guideline, XS would typically be suitable for a 10-13 year old child All Robes are oversized as their main function is that of a changing robe.