Second-generation CR lightweight comfortable bear technology:

• A light aluminum bracket reduces 50% weight than the traditional aluminum bar, increasing by 30% on intensity.
• The back plate with mesh design better increases the back of the breath;
• Upgraded 3D ventilation of shoulder strap makes the user feel very comfortable,
• The design of the waist-care part is wider than the first generation;
• The waist middle divider allows the user to easily tighten the backpack, thus making the entire weight applied to the crotch portion.