Giant H2Pro Top Tube Bag

The bag uses soft Velcro straps designed to be gentle on your frame. However, if you are concerned about long-term wear or have a high-end carbon finish, applying a small piece of clear frame protection tape underneath the strap contact points is a good preventative measure.

The bag is constructed from H2Tex 3-layer waterproof material and features a rugged, water and dust-proof zipper. While it will keep your gear dry during heavy rain and road spray, it is not designed to be submerged underwater.

Yes, the design prioritizes accessibility. The zipper and structure are engineered to allow you to open and close the bag with one hand while you are on the move, making it easy to grab snacks or your phone.

The bag has a volume of 0.8 liters. It is sized perfectly for essentials like a smartphone, a multi-tool, energy gels, or a set of keys, but it is not intended for bulky items like spare tubes or heavy clothing.

At 5cm wide, the bag is slim enough to stay out of the way for most riders. However, if you have a very narrow pedaling stance or a smaller frame, there is a slight possibility of knee rub, though most cyclists find it unobtrusive.