Working for the largest ground delivery company in the world, I have a lot of hands on experience with various high priced soft coolers and other related products. I am so far very satisfied with this product. It is simple, well built and does the job. Cooling efficiency is just slightly below par with Yeti but more than adequate for a day at work. This bag has a zipper. I'm not going to complain about it because I have yet to have issues, but zippers on these soft coolers are ALWAYS the issue. This zipper in particular seems rather "skimpy" in size for what it is responsible for. There were no directions for zipper care like with other soft coolers so I have been proactively lubing the zipper with leftover zipper lube from previous bags.Pros: The bag has two different configurations that affect its portability and capacity. The two snap latches allow the sides to fold down for a cube. Otherwise it sits as the traditional soft cooler shape that resembles a purse.Its made in the U.S.A. which is always a plus. It has molle hookups on one side for extra gear if need be.Constructive Criticism: The shoulder strap is too narrow and needs a thicker cushion sleeve. Loaded for max weight latter this summer, the OE strap would certainly dig into your shoulder. I simply swapped it out with a competitor's from an old bag.I will update my review as I utilize the bag more and more going into summer.