I ordered a backpack Tigernu in September 2017, the goods on Ali here, it was 1.5 months in Ufa, but the customer there was an incident, was taken the wrong way, in the end, sent a second time to make amends had a purse for running on the arm, a nice bonus. Polite in communication, speed of response in about 4-6 hours.
When I unpacked the product, was surprised at the quality, backpack Tierno definitely last longer analogues of Nike, Adidas, etc. This product is not worse than the Dakine, the cost of which varies from 4 to 6 thousand rubles.
In the backpack are a lot additional functional departments; as a book, pens, notebook, powerbank, laptop, tablet, mobile phone.
The material on the outside of the backpack is water repellent; if tilted to pour 50 milliliters of water, the wall will remain dry. Get wet in the rain, but worry for the electronic devices inside are not worth it, even in the rain my stuff inside was dry to the strings.
Compartment for 15-inch notebook is closed with a passcode lock, the only loophole for thieves to rip open with a knife. In the main compartment zipper dual-layer, through which the dog does not get stuck in the material.
The backpack 28 liters, enough for me. He sits comfortably, back does not sweat. The main material is polyester, durable, the walls keep their shape and sense of reliability. Recommend the brand Tigernu, you will not regret about the made choice! Taken from the official representative of the manufacturer on Aliexpress here on this page.
Still I can advise to look at a model from the same manufacturer, to have definitely be addressed!