This is the LEFEET Dive Gear Backpack 45L Designed for S1/S1 Pro Scooter 

Features:

• Material: 500DPVC mesh cloth
• Capacity: 45L
• WATERTIGHT CONTAINER WITH EASY DRAINAGE
• Mesh pockets on both sides to accommodate different types of fins.
• WATERPROOF
• ADDITIONAL PROTECTION FOR BATTERIES
• Includes 1. Bag *1 2. Battery storage bag *2

Two waterproof storage areas. Top and front storage areas are fully waterproof, to hold and protect valuables, phone, keys, etc. Any accumulated water is kept in container when bag is upright, so as not to spill in car. On-demand drainage allows water to pour out easily when desired, prior to laying flat. Main compartment is designed with large zipper, making it easy to store your S1/S1 PRO, BCD, and other dive gear. Inside is designed with four Velcro straps to keep S1/S1Pro in place, and offer better protection. Included are two waterproof storage bags that hold one battery and one charger each, to keep your batteries and chargers protected. Padded shoulder straps and waist belt provide for more comfortable travel.