Double airbag system Keeps kit safe and dry Use without kit as a tow float swim buoy Ideal for self supported swims Lightweight - little to no drag Phone Window - 12.5cm x 20cm (fits most large smartphones) 28 liter capacity Size deflated - 72cm x 37cm Belt length - 58cm to 108cm / 23? to 42? If storing your phone or electronic car keys in the Window Dry Bag we recommend using a Swim Secure Protective Phone Bag for added peace of mind. A brightly colored high visibility inflatable dry bag with leash and waist belt. Ideal for storing kit whilst you swim and for increased visibility in open water. All Swim Secure inflatable dry bags will easily support an adult's weight if you need to rest. This inflatable dry bag has a small pouch at the front of the bag where you can put your phone or GPS. You can use your touch screen phone through the material. Highly recommended for open water swimmers in all outdoor conditions. How It Works There are 2 high flow nozzles; one to inflate the external chamber, which is separate from where your kit is stored; and the second to inflate the storage section once you have sealed the bag. IMPORTANT: Inflate the rear compartment fully. The front valve will inflate the area around the items in the storage compartment. Please ensure that the roll down seal is folded down to the area indicated to prevent any air escaping. Use the back of the valve cap to deflate. The adjustable dual belt design clips securely around the swimmer's waist and the leash ensures that it remains out the way of your stroke. Swim Secure Dry Bag 28L Medium w/ Window, Orange Double airbag system Keeps kit safe and dry Use without kit as a tow float swim buoy Ideal for self supported swims Lightweight - little to no drag Phone Window - 12.5cm x 20cm (fits most large smartphones) 28 liter capacity Size deflated - 72cm x 37cm Belt length - 58cm to 108cm / 23? to 42? If storing your phone or electronic car keys in the Window Dry Bag we recommend using a Swim Secure Protective Phone Bag for added peace of mind. A brightly colored high visibility inflatable dry bag with leash and waist belt. Ideal for storing kit whilst you swim and for increased visibility in open water. All Swim Secure inflatable dry bags will easily support an adult's weight if you need to rest. This inflatable dry bag has a small pouch at the front of the bag where you can put your phone or GPS. You can use your touch screen phone through the material. Highly recommended for open water swimmers in all outdoor conditions. How It Works There are 2 high flow nozzles; one to inflate the external chamber, which is separate from where your kit is stored; and the second to inflate the storage section once you have sealed the bag. IMPORTANT: Inflate the rear compartment fully. The front valve will inflate the area around the items in the storage compartment. Please ensure that the roll down seal is folded down to the area indicated to prevent any air escaping. Use the back of the valve cap to deflate. The adjustable dual belt design clips securely around the swimmer's waist and the leash ensures that it remains out the way of your stroke. (description exceeds maximum possible length)