High-quality YKK zipper, smooth and durable. Hydrophobic fabric, water-repellent design [please do not expose backpack to heavy rain], two-way USB port, charge mobile phone anytime and anywhere (the backpack itself does not contain a mobile power bank).
Breathable mesh on back and shoulder straps supports air convection, ventilation and heat dissipation. The padding of the shoulder straps can relieve the back. Chest buckle design scientifically reduces back strain. A variety of wearing methods, you can wear it on your body or carry it in your hand.
Hidden back pockets provide private space and protect your valuables from thieves. The luggage strap on the back can fix the backpack well to the luggage and reduce the travel load.