Foldable, packable, waterproof, and ready for adventure Toyko Aero is a practical, lightweight rubber boot that stands out from the crowd. These boots are handcrafted from lightweight rubber, making them easy to fold over and pack away when you're on the go. Toyko Aero features a wide fit with a warm quick-drying lining that wicks away moisture inside your boot. The elastic drawstring at the top of the cuff keeps water out and allows you to create an adjustable shaft length.