Osprey Siskin Hydration Pack - Molten Red - 12L - 2021 - 2.5L Bladder eBay Retention system: Now this is

Retention system: Now this is where it starts to get interesting

Fits down tubes: 38 - 70 mm

Also fits 29" Specialized Enduro 2013

Learning to ride clipless doesn't have to be daunting and nerve racking

9 x 150mm = 480g

Osprey Siskin Hydration Pack - Molten Red - 12L - 2021 - 2.5L Bladder eBay Retention system: Now this isThe 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