? 40L Waterproof Outdoor Hiking Backpack ? Large Capacity Durable Design This versatile outdoor rucksack is built for hiking, camping, trekking, climbing, backpacking, mountaineering, and more. With a 36?55L large capacity, it?s also great for school, travel, or daily use. Designed for both men and women, this unisex backpack combines comfort, durability, and water resistance?perfect for all your adventures. ? Large Capacity (36?55L) ? Easily fits clothing, laptop, tools essentials. Great for travel, school, and outdoor trips. ? Comfortable to Wear ? Breathable sponge back panel reduces strain; lightweight design prevents extra burden. ? All-Weather Performance ? Nylon fabric is water-resistant, dustproof, and dirt-resistant, keeping your belongings safe dry. ? Durable Long-Lasting ? Made from high-quality nylon, built to withstand outdoor conditions without cracking or tearing. ? Multi-Purpose Use ? Ideal for hiking, camping, trekking, climbing, mountaineering, or as a school/travel backpack. Why Choose This Backpack? Waterproof nylon fabric keeps gear safe in rain or dust. Large 36?55L capacity for versatile packing needs. Lightweight yet sturdy design ensures all-day comfort. Suitable for men women ? a great choice for outdoor lovers and students alike. 40L hiking backpack Waterproof outdoor rucksack Camping travel backpack Trekking mountaineering rucksack Large capacity school backpack Lightweight climbing backpack Unisex adventure rucksack