BE SAFER . BE SEEN • High visibility orange or stylish black • Extremely lightweight • Ideal for training and events • Triple seal water proof pocket • Material, waterproof 30C TPU, the strap is 53*2.5CM, and can adjust to 85CM long. Our bum bag includes a waist strap, and triple seal pocket. Perfect for storing valuables during your swim, for keeping your valuables safe on the beach, on your paddle board or in the surf. Size 21.5cm x 15cm flat and empty The adjustable belt design clips securely around the swimmer's waist, and is very low drag - you generally