Tackle any adventure with the iCOOL Pinecrest Convertible Backpack Duffel! It has a large 45 Liter zippered main compartment to hold all your gear, an interior zippered mesh pocket, and its weather-resistant coated Tarpaulin exterior will keep things well-protected. The zippered front pocket ensures quick and easy access to your phone, wallet, or keys and it's pass-through design means it doubles as a trolley strap for easy attachment to your rolling luggage. The padded and adjustable backpack shoulder straps easily detach and reattach to convert to carry handles and its two side grab handles make it easy to retrieve from overhead plane compartments. Whether you're packing for a weekend getaway or need a reliable gym companion, these hybrid bags have more than enough room to accommodate your belongings. A portion of all proceeds is donated to Shelter to Soldier™, a non-profit organization that rescues dogs to train as service animals for veterans in need.