Features Enter your model number to make sure this fits. 2 sizes for choosing: Large capacity of 45L and 55L; 55L Size: 70cm(H)*29cm(L)*24cm(W). Super professional carrying air circulated system, breathable, widened and thickened S-type strap, mesh belt, high breathable back padding and waist padding, Internal Frame Backpack. Plug-in system that can mount a large number of outdoor equipment; Large front pocket, multiple zippered side pockets, waist bag on the both sides of waist belt. Fabrics: highly rip and water resistant nylon fabric. SBS Brand Zipper, YNS Brand buckle, High-quality, durable, high low temperature bearing. Description Product Description Features: 1.Use professional carrying-TCS system, breathable back and waist padding, mesh belt design and inner filling soft interlayer sponge, make your back comfortable on the go. 2. Large capacity of 45L and 55L (2 sizes) backpack, professional mountaineering backpacks, Internal Frame Pack. 3. Backpack with a lot of plug-in, D-type buckle, buckle hanging rope, hanging straps, etc. 4.Material: quality Nylon, high rainproof , tear resistant, wear resistant. YNS international quality buckles, SBS top zipper. Include a waterproof rain cover for the unexpected weather. 5. Multipurpose: outdoor hiking, Climbing , camping, trekking, travel. Product Parameters: *Capacity: 45L and 55L(2 sizes) *Material: Nylon *The Suspension System: TCS carrying Professional system *The Suspension System Structure: Internal Frame Pack *Size: 70*29*24cm (55L) *Net Weight: About 2.6kg (55L) *Colors: Yellow, Black Package: 1*backpack 1*rain cover