I'm due a new rucksack. I currently us a Berghaus Freeflow IV 20. Now do I just get the new model as I quite like my rucksack or something else.

Recommend away STW!!!

NB It doesn't have to be cycle specific but it should be able to hold a camelback bladder, oh and be waterproofish.

Camelbak Mule for me.

I reckon the Camelback Octanes look good, might be my next pack i think:

http://www.wiggle.co.uk/p/cycle/7/Camelbak_Octane_8_Plus_-_2_Litre_Hydration_Pack/5360028103/

osprey talan. i have a 22 (i think) most comfotable bag ever. most of the time it's not full though and i think the next size down would be better altohugh they re bringing out biking bags come february. not cheap though!

Alpkit Gourdon 20

http://www.alpkit.com/shop/cart.php?target=product&product_id=16379&category_id=251

Genius

North Face Megamouth. Just saying last night "this is the best bit of bike kit I've ever bought". 5yrs of punishment and still looks good as new.

The mule is the favourite so far but the cost is prohibitive.

Another vote for the Osprey packs.. Far superior to anything Camlebak have made IMHO..

+1 for Osprey Talon. Wanted something bigger than my Camelbak Mule for all day stuff. I can't believe how much more comfortable, adjustable and feature packed it is than the Camelbaks. Not biking specific so also fine for day hikes etc and meets all your criteria

Osprey's bike-specific pack, the Raptor, comes out in the spring. Not used the Raptor, but have used the outdoors version. Scores massive brownie points for having a bladder you can insert into the pack even when it's fully-loaded and generally very well thought out and made.

I like my Wingnut Hyper 3.0 though.

The smaller of the OMM sacs are pretty good as are inov8.

thanks for all the suggestions guys. I'll be having a look tonight.

Ergon – I much prefer it to my previous Deuter / Osprey attempts to find a decent day bag and that is also big enough to carry things to and from work once or twice a week (laptop / clothes etc). It's got a pouch for a bladder as well as routing on the straps for the tubes.

It sits off your back which means you don't get too hot, the weight sits nicely on your hips and the ball joint means that you've got pretty free movement and don't get any disconcerting weight shifts when it's fully laden. Mine's withstood over a year of use through pretty grim weather and I've never had a problem with leaks etc when using the waterproof cover.

Expensive though.

osprey talons

osprey talons

I have the 33 for commuting.

It is the ultimate.

David.

North Face Megamouth

+1
excellent "trampoline" back system too, keeps it stable and air circulating.

lezyne allpack. Love it.