Any recommendationsre. a lightweight dive bag that can b eused as lugge to transport mygear & then b eused on boat as well. I hav eseen fellow divers with wheeledbags,pullout handle bags, back packs etc. I hav eproblems with my back & shoulders sometimes so I would love something easy/light weight to lug around airports & from hotel to dive shops yet sturdy & reliaible, yet not too bulky on a boat!