Equipped with a large twin buckle closure system, the Adventure-X is easy to put on and take off, while remaining fastened in place with additional hook & loop fasteners. The system allows the boot to fit around a range of calf sizes for a secure, supportive and comfortable fit. A breathable SinAqua Pro membrane keeps the foot dry and fresh whether riding in the rain or wading through mud, with a walking boot style sole for grip when taking the adventure off the bike!