H2Pro Frame Bag (4L) ski obsidian is the hard

obsidian is the hard

Our improved bite valve design delivers 25% more flow

• Cork shield for grip control

A single AA battery fuels the strobe

H2Pro Frame Bag (4L) ski obsidian is the hardThe H2Pro Frame Bag is designed to store bulky items within the bike frame without altering the bikes center of gravity or handling characteristics. Constructed with our all new H2Tex three layer waterproof fabric and a high quality water and dust proof zipper, the H2Pro Frame Bag features a hidden port that allows you discrete access to the bag for charging batteries or connecting to a hydration bag. FEATURES Giant exclusive H2Tex 3 layer waterproof