I bought these  boots for my son, he is active and likes running around even in the snow, so wanted to find him a light boot that wouldn't slow him down. This boot fit the bill. True to size, very light weight, and comfortable for an active person.  He hasn't been in deep snow yet, but used them in light snow and rain and so far they have kept his feet warm and dry.  Columbia has done a good job with this boot-close to the new Nike winter sport boots, but better price and actually better quality and traction too!