Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
Capacity: 20-35 Litre, Pattern Type: Solid, Handle/Strap Type: Soft Handle, Rain Cover: No, Exterior: Solid Bag, Model: B00120, Backpacks Type: Softback, Style: Casual, Carrying System: Arcuate Shoulder Strap, Main Material: Oxford, Item Type: Backpacks, Color: Black / Blue / Gray, Closure Type: Zipper, Lining Material: Polyester, Gender: Unisex, Size: 47cm*17cm*35cm, Interior: Interior Slot Pocket / Cell Phone Pocket / Interior Zipper Pocket / Interior Compartment / Computer Interlayer
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.
Link: Banggood product page
1. ($68.81): tRaDetRaCKeR
2. ($68.81): 8wEbgaInS5
3. ($69.55): 2203ActiesNL
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGAFF10OFF, BGCuponation10, 13f142, BANGGOODSD, 00c906, BGef96eb, Kortings10, 2022ACTIESNL, Terence, Tabby20, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for 18 Inch Laptop Bag USB Charging.
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)).