BAG SIZE: 50*29*18cm Large Capacity & Organized -40 liters storage rucksack , it is very convenient to put all your hiking, travel, camping and other accessories in this roomy foldable travel backpack. The main compartment has two spacious sections that can hold your clothes and travel gears in order. Water-resistant and Durable Backpack - The water-resistant fabric used making this back pack is very light even with the padded shoulder straps for comfort. Very strong, durable and breathable at the same time. Stress points are reinforced with bar tacking for increased longevity. We use durable 2-way Abrasion Resistant SBS Metal Zippers across the backpack,very solid and easy and free to glide or zip,don't worry about zippers that catch onto flaps. Comfortable Outdoor Companion - We take comfort and functionality into consideration when designing. The breathable mesh shoulder strap helps relieve stress on your shoulders. The length of the shoulder strap is adjustable. Adjustable chest strap with buckle helps you hold the backpack securely in place and send messages for help. Not easy to fall when walking or running. The reflective strips on the backpack make it an excellent companion for outdoor adventures during day and night. Multipurpose - 40L hiking backpack ideal comfort for day-to-day use or day trips, vacation, fishing, travel, hiking, school, work, camping and Disney day trip. Great hiking backpack for women and men.