The design is great on this, the wrap around the calf can be snugged up nice and tight with the velcro straps, and it stays in place. I have a nagging calf pull that's super slow to heal, and I wouldn't be able to walk for exercise without this. I can come close to tweaking it again, but the support is enough to keep it from going over the edge and re-injuring the muscle. I find it's helpful to combine it with a compression sock, it provides a good base for the wrap.
Rating: [5 of 5 Stars!]