Have 2 of these now, must have for boating if you want to keep stuff dry, well made and durable!

For five years I had emergency cold weather gear and sundry items lashed to a good spot under the deck and over various equipment lockers in all weathers while working a twin-steer.Unless your gear is very light weight, the XL (I think its 70 Liters) is too heavy to lug through an airport.Shortly after the first one I bought two small ones that still serve me well. The big one holds a stash of extreme weather gear in the back of the closet that I may never need again.I use one or both of the smaller ones rather regularly..All are still totally waterPROOF!The clever little side pockets are too clever and somewhat fragile.I have come to distain zippers. I strongly recommend clips, cinch-straps, buttons, pull-snaps velcro.I note a maintenance advisory; Use a very, very light application of petroleum jelly to keep the vinyl from hardening in the weather or ozone. Very light. Wipe off any residue. Works for all vinyl I have tried it on so far.

Saw Tdubs kid used this bag and decided to give it a try. Decently heavy-duty and fully waterproof. Great option for a poor man's motorcycle duffle. Its also freaking HUGE, I got the smaller one and can easily fit a full 7 days of outfits in the bag with room to spare.

All of our tents and sleeping bags stayed dry through downpours!