High Quality Material – Made with durable polyester fabric to ensure no damages made to your items. Weather/Water Resistant – The water resistant material protects your smart devices from any damages. The durable design and material protects you're belongings placed in the bag from the weather; making it perfect for outdoor trips. Easy to Install – The Velcro straps allow easy attaches under the seat and can be adjusted to fit all bikes. Lightweight – This pouch is lightweight and nicely fits under the bike seat without creating clutter. Easily Accessible – The pouch is easily accessible right under your seat. The zippers smoothly slide open and close for access anytime.