I recently bought a gorgeous Osprey 'Berlin' leather bag (tan) which I absolutely love. I'd now love to buy something in NAVY leather which will coordinate with lots of stuff in my wardrobe. The bag needs to be large (able to carry water bottles etc) and preferably quite casual in style. I'm not keen on lots of buckles and 'fussy' detailing. My budget is up to £80. If anyone could help my search, I'd be very grateful. TIA.