The Yeti X is a technical trail weapon. It works on difficult terrain and in difficult conditions such as mud and rain. The lacing provides good foot security against lateral movement as does the very grippy Vibram footbed. The Yeti X is not recommended for urban use although there's no reason why anyone should not use this fine sandal in any environment. The Yeti X, as with the Yeti features a midsole layer of 3-4mm of foam. This provides some damping qualities and makes the Yeti X comfortable on extended trails.