Hi

I need a rugged backpack that could contain basic equipment for 3 days.

The pack must be rain-resistant, comfortable to wear, rugged (1000 cordura / ballistic nylon)and well designed with convenient access to most of the stored gear.

Design must have a military appearance (can be khaki,OD,tan or camouflage)

The backpack's signature must be of modest dimensions (carry-on aboard airliners)

Thanks in advance for your suggestions.