These fit a child aged 7-9, my boy is small so has grown out of it at aged 11. They have winter liners and all standard armor in knees, elbows etc. They are no longer waterproof but the care label says they can be washed which we have never done so may become waterproof again with a wash (not sure how it works). The jacket has back vents. Pick up from Gordonton. Happy to arrange trying it on first, send me a question.