I bought one but returned it before using. I felt it was too "blousey" for a bike jacket. Even the dealer said it was really more like a hang around jacket than a riding jacket. I ended up buying a vented leather jacket with removeable liner. You can open the vents and wear it in warm weather if you want. Either way at least it has the leather for some protection. The Summer Blouson jacket has no injury protection, just blocks some wind and rain.
