Bicycle handlebar bags can be broken down into two levels of water protection: waterproof and water-resistant.

The material is another feature that should be taken into consideration when picking out a bag. Bicycle handlebar bags can be broken down into two levels of water protection: waterproof and water-resistant. Waterproof handlebar bags are made from materials such as dry bag style PVC or treated, heavy-duty Cordura. Features like seams, pockets, and zippers all diminish the bag's ability to seal out water, therefore most waterproof handlebar bags offer fewer organizational features than their water-resistant counterparts. For the best of both worlds, there are water resistant handlebar bags which offer tight fitting rain covers, an easy solution for protection during an unexpected rain shower.