Compact Sling Backpack,Waterproof Travel Bag,35l Capacity,Anti Theft Casual Travel Waterproof Sling Backpack WATERFLY Small Packable Sling Crossbody Bag Sling Bag Daypack for XB Waterproof Sling Bags, Crossbody Backpack for Men & Women, Outdoor. This Rabock Waterproof Sling Backpack is the perfect blend of style and practicality. with a sleek design. plenty of room for storage. and adjustable straps for maximum comfort. Made with lightweight and waterproof material. it offers reliable protection and includes multiple pockets for easy organization. Enjoy a bag that looks great and stands up to everyday use. Inspirations: Rabock. Cyberpunk. Streetwear. Futuristic. Available In Black. Gray. Camo. Premium materials: Oxford and polyester.