I have the 7L version. I like the Everyday sling, and it does some things better than this one (especially if you are using it to carry camera gear), but you cannot beat this Outdoor sling for general utility in most travel situations. The phone pocket on the back is comfortable and brilliantly executed. I think the bag has the perfect combo of pockets and open space. It can be emptied, squashed down, packed, and used as a day bag or pocket relief at your destination, and also makes a great under-seat personal item on any airline. If you carry a water bottle and are not also using a backpack with a sleeve, you can easily fit a 24oz bottle in the sling with all kinds of other stuff, or lash it to the bottom, or carabiner it to the strap. The lash points and straps on the bottom are super useful and add a bunch of capacity if you need to carry layers of clothing. I've used this sling on beaches, mountains, and snowy trails in all sorts of conditions and it kept my stuff safe and easily accessible. I have lots of Peak products and think this is one of their best designs. Get one!