$5.99 – 20L Foldable Backpack Ultralight Outdoor Folding Backpack Travel Daypack Bag Packable Sports Bag for Men Women – Black.
$5.99 – that is current price with coupon for 20L Foldable Backpack Ultralight (in Banggood). Check coupons or create price alert down below. Best price?
Latest coupon and price update (UTC):
Banggood ($5.99)
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database. Well, is it a good price anyway? Good news! This is great price, coz it’s the lowest in CouponsFromChina database!
Link: Banggood product page
Price: $5.99
Additional Banggood coupons: first page and second page
This is the best price ever noted in my database!
Old coupons (from the oldest to the newest): BG3661a0, Sports23q1, BG589b2e, BG4a87be, BG4844f4, BG1cb589, BGc28268
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for 20L Foldable Backpack Ultralight. The lowest price was: $5.99.
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)).