I bought these for my son. He's 5. The 6T fit him a bit large, as I expected, but it's not a problem, and they'll fit him next year. The zipper is three-quarters the length of the mitten, so they're easy to get on and off; plus, at the end of the day, I can get them to dry faster by opening the zipper. The gauntlet fits over or under a jacket. My son has worn them both skiing and snowboarding on the bunny slopes and while playing in the snow, and he hasn't complained of cold hands. He loves the blue color.