Valve Type: Features a high-flow valve with a silicone mouthpiece

Light and airy design means you'll barely notice it when it's on

durable grilamid frame

Compatible with standard freehub bodies

Other features: Clearview strip with measurement markings to help you accurately mix your fluids

Osprey Siskin Hydration Pack - Dustmoss Green - 12L - 2022 - 2.5L Bladder Heavy/Bulky Valve Type: Features a high-flowThe Siskin pack strikes the perfect balance between the two extremes of not having enough storage and having too much storage so that you end up weighed down with too much gear. It's somewhat of the Goldilocks of packs as it gives you plenty of room to store and organise your gear but you won't need to hire a Sherpa to get you to the top of the hill. The main compartment has a U zip so you can open it right up and lay it flat to easily access all your