Storage capacity: 10.2*5.9*6.2 Strap type: 3-way [Waterproof] Polyester plain weave waterproof fabric, no need to worry about your belongings getting soaked on rainy days. [Special Material] The strap is made of reflective material, ensuring safety at night. Load capacity is 8 kg. [Size] 17.3cm*5.9cm*10.2cm Stored size: 10.2cm*5.9cm*6.2cm [Ultra-lightweight] Only 0.52 grams, this backpack folds down to the size of your palm, making it easy to carry. [High Performance] Compact and space-saving, it's perfect for outdoor activities such as mountain climbing, baseball, running, fishing, cycling, picnics, cherry blossom viewing, camping, sports days, and more! It's also great for home use. Used a few times. Used at the beach. There are some salt stains.