Osprey Siskin 12 Mens Bike Hydration Backpack With Hydraulics Reservoir, Obsidian Black

Excellent bag ideal size for long and short rides. Holds 2.5 litres of water which is great for long rides. Plenty internal storage for toolkit, food and a waterproof

Plenty of storage plus a water bladder. Stays in place when you need it to. Replaced a Camelbak and glad I did.

GREAT LIGHTWEIGHT HYDRATION BACKPACK. I WOULD RECOMMEND GETTING THE QUICK CONNECT KIT SO THAT YOU CAN EASILY TAKE THE HYDRATION BLADDER OUT TO RINSE AND CLEAN. NOT SURE WHY THIS IMPORTANT CONNECTION IS NOT JUST INCLUDED WITH THE BACKPACK.

No leaks in bladder. Easy to fill. Tons of pockets! Kinda big for festivals but we’ll worth the quality.

Brilliant quality overall but the magnet that holds the mouth peice for the water in place isnt strong enough so it just hangs down. (Its a small issue)

Cant beat a REAL lifetime warrantee!

Osprey will always be #1 in backpacks/hydration packs. Life time guarantee for all products, of any year. Sturdy build for all your cycling needs. Enough room comparable to a small school backpack

This is our fourth Osprey pack in 12 months - it joins an Aether 70, Hikelite 26 and a little Kobi 20 (my daughters); good value for money at this price (although not sure why black is cheaper?!) its another great product from the brand. The pack appears bigger than the Camelbak MULE it replaced despite apparently being smaller and its a lot more comfortable. The bladder comes with no quick release hose valve which is a shame but works well with the baffles helping to stop the water from sloshing too much. Do make sure you fold the top forwards though to close it - I accidentally tried several times the other way and the slide just kept getting stuck. Inside the space is well thought out and even a full bladder doesnt intrude on pack space; unlike the MULE. It sits nicely on my back and the zips are all decent quality; I would prefer some form of waterproofing on the main zip as it has no cover but so far its stayed dry. The side pockets are useful too - I plan on using this for trail runs too and my iPhone Xr just about fits so I can take photos on longer run without removing the pack. So a decent pack, the usual Osprey quality and well thought out.

Good size plenty of space to store stuff. Nice easy to access snack pockets. I like the back it lets air pass through so you dont sweat too bad.

Perfect for hydration and storage on a long mountain bike trail through the mountains