Whether you're a fan of trekking or hiking, this bum bag will shoot you out of your hiking boots. It has an adjustable strap, thanks to which you can slightly increase or decrease its volume. So if you are surprised by a downpour on the route, you can comfortably pack a raincoat in it. It is made of functional material that is lightweight, but does not let a drop through. The first sports Vuch collection Made of ripstop - lightweight, breathable, waterproof material Extendable main pocket with double zipper Adjustable strap with automatic magnetic buckle