The trusted Storm jacket is most commonly referred to as a spray jacket, However the Blizzard storm Jacket is 100% waterproof rated to 2000mm made from nylon with PU coating, is fully seam sealed, with elastic cuffs, packaway hood that packs away into itself. Perfect for throwing in the backpack in case of rain. sIZE BREAKDOWN: S = approx 4-5, M = approx 6-7, L = approx 8-10, XL = approx 12-14. NB: Not breathable.