Basically copy coupon, view price history or create e-mail price alert. Best price?
1000D nylon, Waterproof, dust proof, anti-tear
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Outdoor Molle Military Tactical Backpack, Sports Bag, Waterproof, Camping, Hiking, Travel, Hot Outlife, 50L | $40.05 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Price history and price alert
Here is price history (for all/most countries) for Outlife Tactic Molle Waterproof Outdoor Sports Waist Bag.
Price records source(s): Gearbest
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)).