Ergonomic- We've got your Back (back). Designed with padded back and shoulder straps for optimum comfort Light Weight- This lightweight yet strong shell can withstand any journey Premium Durable Fabric- Engineered for performance, this polyester fabric has high-tenacity durability and is water and dust resistant Easy Access Pocket- Say goodbye to last-minute searches of your essentials because the easy-access pocket makes it super accessible Bottle Pocket- Side mesh pockets that can fit a water bottle or umbrella