A soft flask doesn't change what you're eating — it changes the logistics of eating it. Maurten's Gel Flask exists for riders who have already settled on a carbohydrate target and are tired of the wrapper management that comes with hitting it. Manufactured by HydraPak, the line covers 2 formats: a 150ml flask sized around the Gel 100 and Gel 160 sachets, and a 350ml version built specifically around Gel Mix 480. Both are clear, collapsible, food product approved, and refillable rather than disposable.

The 150ml Gelflask holds 200 grams of gel, which works out to 3x Gel 160 for 120 grams of carbohydrates, or 5x Gel 100 for 125 grams. That is most of a long ride's fueling in one container that fits in the hand. The neck aperture is wide enough to squeeze sachets in without wearing them, and the screw cap uses a flip-top with an enlarged valve so the contents actually move when you squeeze — hydrogel carries more body than a standard drink, and a narrow valve fights you. Collapsible construction means it packs down when empty instead of holding its shape in a pocket on the ride home.

The 350ml Gel Mix Flask is a different tool for a different product. It is made for Gel Mix 480, which combines 120 grams of carbohydrates with 200ml of water into a texture that sits between Drink Mix and gel. The sachet opening is designed to fit directly into the top of the flask, so filling doesn't require a funnel or a third hand. It runs a SpeedFill cap that pops open for fast refills and a bite valve for consuming over rough terrain. If you're buying to consolidate Gel 100 or Gel 160 sachets, the 150ml is the match; the 350ml is a Gel Mix tool.... Read More