• 8 Hours Retention: MARYHFENVA backpack cooler is made of high-quality durable waterproof and thermal insulation foam to keep beverages cool 4-8 Hours throughout the day for beach picnic, hiking, camping, trip, boating, baseball / golf and work
• Leak-proof Liner & Waterproof Zipper:Our cooler backpack liner adopts high-tech seamless hot pressing process for leak-proof; The waterproof lining combined with the waterproof zipper means you can confidently fill our backpacks with ice, beer and soda cans and take them with you anywhere
• Water Resistant & Lightweight: Our cooler bags are heavy duty durable fabric, never rip, tear or scratch but also lightweight; Lightweight & portable design with padded shoulder straps , more comfortable than carrying a heavy big cooler
• Ergonomic & Comfortable Design: Thicker padded back with ergonomic breathable design paired with adjustable,breathable and padded shoulder straps help to reduce fatigue during a long day of trip. The backpack ice chest comes with a handle,which is labor-saving and durable
• 30 Cans Large Capacity: Measures 13.2''H x 9.85''L x 7.3"W and can hold 30 cans (330ml), roomy enough to pack meals, beers, tall beverages, snacks and other necessities. A perfect gift for both men and women