Street Bold 20L Norwegian Ergonomic Backpack (for Upper Elementary Students)

Suitable for heights 130-165cm. Norwegian national research institute verification: ergonomic design reduces spinal pressure by transferring 62% of the weight. High-durability fabric on backpack sides, U-shaped dual zipper with a wide opening. Waterproof coating + waterproof zippers effectively prevent water seepage, enhancing overall protection! A stable base supports weight, keeping the backpack upright and preventing deformation. Awarded ergonomic certifications from Germany, Japan, IGR, and more. Sternum strap + detachable waist strap. Plush lining protects laptops from scratches. External attachment design, like adding expansion modules to your bag. https://img.91app.com/webapi/images/r/SalePageDesc/7290757/0.jpg?ts=171401 https://img.91app.com/webapi/images/r/SalePageDesc/7290757/1.jpg?ts=171401 https://img.91app.com/webapi/images/r/SalePageDesc/7290757/2.jpg?ts=171401 https://img.91app.com/webapi/images/r/SalePageDesc/7290757/3.jpg?ts=171401 https://img.91app.com/webapi/images/r/SalePageDesc/7290757/4.jpg?ts=171401 https://img.91app.com/webapi/images/r/SalePageDesc/7290757/5.jpg?ts=171401 https://img.91app.com/webapi/images/r/SalePageDesc/7290757/6.jpg?ts=171401 https://img.91app.com/webapi/images/r/SalePageDesc/7290757/7.jpg?ts=171401 https://img.91app.com/webapi/images/r/SalePageDesc/7290757/8.jpg?ts=171401 https://img.91app.com/webapi/images/r/SalePageDesc/7290757/9.jpg?ts=171401