Go down and check coupons out. Remember to check price history if it is available. What is best price?
Lining Material: Polyester, Business, Capacity: 20-35 Litre, Nylon, Backpacks Type: Softback, Main Material: Polyester, Handle/Strap Type: Hard Handle, Closure Type: Zipper, Style: Casual, Color: Black/Blue/Gray, Carrying System: Arcuate Shoulder Strap, Gender: Unisex, Item Type: Backpacks
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. CouponsFromChina software could not find any coupon for this product in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 2019SPEDM, BG3CSUM, AFfbG10, BGBFCR29, BGCITYADS2019, 0e7f33, FBCOUPON1, BGAFF10OFF, BGCuponation10, 13f142, BANGGOODSD, 00c906
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for Xiaomi Laptop Backpack is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).