Sizing: The On Running Cloudswift style fits small. We'd recommend going a half size up in this style. IE, if you usually wear a men's 8, we'd suggest going with a men's 8.5 in this shoe.
The Cloudswift is made for urban runs. It's light and agile but absorbs heavy impacts to protect you from the tough surfaces. The upper is designed for total comfort and security, Swiss engineered to fit like your favorite socks. Running on hard surfaces never felt easier.