Brand Name: ARCTIC HUNTER

• Model Number: B00423
• Material: Polyester
• Item Type: Backpacks
• Backpack Type: Waterproof, Laptop, Business & Travel Backpack
• Closure Type: Zipper
• Capacity: 20.7 Litres
• Handle/Strap Type: Soft Handle
• Carrying System: Shoulder Strap
• weight: 0.9kgs
• Dimensions: 46 x 30 x 15cm

If a backpack is labeled waterproof, you can completely submerge the bag in water without letting moisture inside. Waterproof is more about being underwater than about being in the rain.