When looking at the durability of the Sea to Summit TravellingLight Hanging Toiletry Bag, there are a few things to keep in mind. First off, it uses unbranded zippers instead of the more high-end YKK ones.

From our research, these zippers work well enough, but they're not water-resistant like YKK zippers, which could be a downside in really humid or wet places. Still, many people find them durable for everyday use, even if they're not top-tier.

The bag itself is made from lightweight, water-resistant Ultra-Sil Cordura nylon. This material is known for being pretty tough and holding up well against wear and tear. The design is also simple and functional, which a lot of folks appreciate for its ease of use.

So, if having the best zippers is a big deal for you, this bag might fall short. But if you’re after a durable, lightweight toiletry bag with practical features, the Sea to Summit TravellingLight Hanging Toiletry Bag is still a good option according to our data.