The sides of the Adventure Vest are the defining characteristic of vest-style packs. Each side of the vest forms one unbroken loop from the waist all the way to the top of the shoulder. In a backpack the shoulder straps have thinner straps that connect to the bottom of the pack and can be shortened and lengthened to tighten the bag to your shoulder area. With the vest you put your arms through each loop and buckle the sternum straps at the front.
On each side of the vest at hip level, there are large zippered pouches, made of the same soft, stretchy material found on the front of the pack. These are great for storing hats, gloves, sunglasses, etc. Softer things would probably work best though, as this area presses directly against you hips.
Behind each large pouch is a small piece of velcro that, when opened, reveals an adjustable strap that tightens the vest to your waist. It took me a while to realize that this important feature was here, so be sure to make note of it’s location if you plan on buying one.
In front of the large pouches are smaller ones that are ideal for energy bars, gels, a wallet, or other small items that need to be accessed quickly and easily.