Description: 【Material】: Crafted from 0.35MM PVC, this Swim Buoy is designed for durability and reliability during water activities like swimming and drifting 【Good Waterproof Protection】: Features an IPX7-rated airtight zipper pocket and an IPX6-rated storage compartment, ensuring your belongings stay dry during short-term water exposure. Note that the storage compartment is not fully sealed; avoid storing electronic devices inside 【Convenient Inflation System】: This Dry Bag is equipped with a quick inflation valve, allowing you to inflate the gasbag effortlessly by mouth without any additional equipment. Simply press the red button to deflate quickly when needed 【Ample Storage Space】: Offers a generous 20L storage capacity with dimensions of 14.57inchx27.56inch for the main bag and a transparent pocket measuring 6.69inchx10.63inch, providing ample space for your essentials while engaging in water sports 【User Friendly Features】: Comes with a set of waist belts for secure attachment during use, ensuring stability and comfort while swimming or participating in other aquatic activities. The airtight zipper may be tight; ensure it is fully closed by pulling firmly to maintain waterproof integrity Specification:  Swim Buoy Flat Size 37cmx70cm/14.57inchx27.56inch Transparent Pocket Size 17cmx27cm/6.69inchx10.63inch Package Includes: 1 Swim Buoy Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.