Hyperlite Mountain Gear SOUTHWEST 40 Black M size Used only once to carry items, and has not been used in the mountains, so it is in beautiful condition. Please feel free to comment if you have any questions. -----------Product Description--------------- The shape is the same as the flagship model "Windrider", but the front pocket uses a high-strength fabric that can withstand rubbing against rocks and bushes. This is the 40L size, which was previously called 2400. This backpack uses Dyneema®, and is lightweight, breathable, and durable. The seams of the pack body are seam-sealed from the inside, making it waterproof, and the fabric itself is also very strong. Two aluminum stays are built into the back and can be removed. When the load is light, remove the aluminum stays for a simpler feel. When the load is heavy, attach the aluminum stays to ensure a secure carry. The load capacity is from 9kg to 18Kg. Dyneema® features are ultra-lightweight, high strength, high weather resistance, and waterproof. On a weight basis, it is 15 times stronger than steel, and depending on the weaving and sewing method, it can withstand hundreds of kilograms of weight. Compared to general 210-denier nylon fabric, it can achieve the same strength at 1/4 to 1/5 the weight. 【Material】 Black: DCH150 (Main Body & Bottom) 【Capacity】 40L 【Weight】 Black: 2.0 lbs | 31.9 oz | 904 g ※Measured in M size 【Width】 26.7 cm 【Height】 76.2 cm ※Unrolled 【Circumference (Top)】 95.3 cm 【Circumference (Bottom)】 85.1 cm Material: UL/Ultralight Size: 30-45L