Going on a bike trip and don´t want to burden yourself with a bag or backpack? Store your bottle and essentials in the Rockbros bag, which you can conveniently mount on your bike. The product holds firmly in place even during a fast ride. You can attach the Rockbros bike bag anywhere you want using three Velcro straps. What´s more, you can secure the bottle by tightening the opening of the bag with a drawstring. In an additional compartment you can store your smartphone and keys, for example. The weight of the product is about 50 grams, so it won´t be a burden while riding.