New Arrival Durable PU Leather Teenager Student Backpack School Bags
- Category: School Bags >>>
- Supplier: Huizhou Hongfeng Technology Development Co. Ltd.
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Product Overview
Description
Brand | WIN |
Style | New Arrival Durable PU Leather Teenager Student Backpack School Bags |
Model | BP107LP |
Material Type | RECYCLED FAUX LEATHER W/ PRINTING |
Lining | RPET 210D poly |
Whether waterproof | Waterproof |
Dimension information | 30 x 12 x 45 CM |
Function and use: | Stylish printings backpack to school, travel or work, it’s light weight and fits all your essentials well. There have many compartments for storage and secure zippers to protect your stuff. The trendy design is comfortable to wear, with adjustable padded shoulder straps and padded back. So when you carry the backpack, you will like it and feel great. The most important is that it’s not just a kids backpack, you can carry it for travelling when you work, and it can put many stuff such as clothes, laptop, your personal toiletries ect. One or two days trip would be available. |
Waterproof Material
Our marvellous waterproof quality is based on selected materials that are developed for specific applications. Such materials include polyester, nylon, PVC free, Cordura fabrics etc. that are coated on one or both sides. Winfung's TPU Backing Coating Technology meet extremely high waterproof specifications and are far superior than commercially available coatings method in the market.
Superior Bonding Methods
he coated fabric used by Winfung - including all welded seams - continues to resist leaking when exposed to 20,000pa coloumn of water! This professional degree of waterproofing is achieved using a process known as high frequency welding (HFW). Instead of applying heat from the outside, HFW involves the application of high frequency voltage to the objects that need to be welded. The voltage causes the molecules within the various materials to vibrate and, essentially, to generate heat. Softened from within by the heat, the materials are then bonded under high pressure, leaving the welded seam at least as stong as the surrounding material.
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