Scubapro makes a bag that will fit your needs extra long pleanty of room for ally our stuff and a thin mesh that allows for easy folding into a small size for stowing away. check here http://www.scubapro.com/en-US/USA/accessories/bags/products/mesh-sack.aspx
Also Akon did make a great bag that was a duffle/backpack type has a zipper down the side, inside drybag compartment and is 1000 denier with a heavy mesh does not fold up quite as small as the scubapro but it’s heavy duty mine has lasted 5 years so far without any problems . check here http://www.akona.com/product.php?product_id=147
Hope this helps