This is a great option for those who beat up their transition bags and are constantly replacing them. This bag stands out for its shiny, durable polyester laminate finish that makes it extremely water resistant. There are several pockets up front and around the side (for things like a helmet, sunglasses, and sunscreen), and a zip-around bottom pocket to keep a wetsuit in. The main compartment is huge, which is ideal for those who prefer to shove everything in after a race. A favorite feature is the clever side loops that can hold a bike pump, yoga mat, jacket, etc. While the bag is extremely comfortable to wear (thanks to well-placed padding), the material makes the bag heavy even when empty.