PatagoniaOne Shoulder Backpack, Black, 8Lt

Packs up in its own pocket and stores in my travel luggage. I used it for 2 weeks at the Paris Olympics, it held my 20oz insulated water battle, a small pair of binoculars, a rain jacket, and a couple snacks. The nice part about a sling bag is that you don’t take it off when you sit down at sporting event, subway train, etc, instead you just swing around onto your lap and all the zippered pockets are now accessible. This also makes access quick and easy to get something out while still wearing it; and NONE of you items dump out!

It’s great and quality.

Of all the things from Ponia this is the cheapest thing I’ve ever seen with the biggest price tag. It is extremely light, but comparable to the free backpacks that they give at fares and festivals for paperwork.