Perfect For Hiking, Running, Cycling, And Festivals, This Reflective Hydration Package included: 1. 2L Water Bladder 2. Mini Hydration Backpack with 1L Hydration Bladder Comfortable and Lightweight: The water backpack is designed for comfort with fully adjustable shoulder/chest straps and no bounce. It is ultra-light, streamlined, and fits all sizes comfortably. 2L Hydration Bladder Included: The hydration backpack comes with a PVC BPA free 2L hydration bladder that is leak proof and easily removable via the main pocket. The oversized 2-inch wide screw cap allows for ice and easy cleaning. Fun Designs Colors: The hydration pack features bright colors, unique styles, and patterns that make it stand out at music festivals, raves, and other events like hiking, cycling, running. Perfect Fit: The hydration backpack is built for men, women with comfort-stitched straps and high-density notched foam stabilizers. It also has a breathable lightweight mesh for added comfort. High-Quality Construction Design: The water bladder backpack is constructed with cushioned, breathable mesh and quick drain drip hole. If you are not satisfied for any reason, money-back guarantee! Welcome to contact us if you have any issues or are unhappy with our hydration backpacks (NO RETURN REQUIRED if it is a defective item), we will help you solve it out within 24 hours.