Large travel backpack advice

[dave0010]

I'm planning on doing more travelling this year so need to invest in a good large backpack. My current one cant hold more than 15kg. Most airlines I'm travelling on have a 20kg limit and due to duration I'm planning on traveling a larger back is required.

I've seen some already whilst travelling that have a bag that covers them whilst there on the plane, this also doubles as a water proof cover. Has anyone got any experience of these? any help will be appreciated.

[dave0010]

Current one is very old and falling apart. You cant carry it for long as all the straps are knackered. I would be happy with a good 40l one just no idea which one to go for. Like everything theres a million and one choices. Im happy to spend the money on a decent one as Im planning on living out of it for some time.

[dave0010]

No not looking for a carry on bag, sorry I realise I said I was looking for something around 40ltrs but just realised thats quite small. Im after a slightly larger back because I can then put a camera tripod within it.

I've just come back from Vietnam and was tempted to buy one of the thousands of Northface bags there but was unsure how long it would last

[dave0010]

Cheers all, I went into Mountain Warehouse and spoke with a helpful guy there. I now know the size back that will suit me would be a 65+15. Im 6ft 1 and it fitted my length nicely. That should be all the space anyone could ever want so I just now have to decide on one to buy.

Id like to only buy a small pack to limit what Id take with me but Id rather have the extra space just in case. I have found this one on there site but I'm still planning on looking searching to just make sure its right.
http://www.mountainwarehouse.com/rucksacks/rucksac...

[dave0010]

Hopefully I will have time either today or Wednesday to head into one of the big shops to try a few on.I'm also after a few other bits and bobs so a big store may answer all my needs.