Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – IPRee 80L Waterproof Hiking Backpack (-3 USD)
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Europe 
. This is new product in my database, so I don’t know if this price is good. Well, there is one coupon available right now.
Link: Banggood product page
Coupon (50.23 USD): BGc363fd
(CouponsFromChina.com tip: you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGAFF10OFF, BGBAG80, BG146151, BgcLuBofErtA10, BGZPBC15, BGTY704CP, BGCuponation10, BGHONEY2110, BG10OFFAFF, BGwhielabel, BGBWITHUS143, 13f142, BG10OFFAFF1, BG281e4d, BG4d9120, BGAlerabatod, BG00c906, BG36e006, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, BG2bb7a1, BG5d2ea4, BG8ReviTrage, Cuponation9, BG073996, BGc5e1ec, BG8OFFCOUPON, TTBLACK5, BG589b2e, BGSaleFeb8, BG781363, BGc28268, BG9dce6b
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – IPRee 80L Waterproof Hiking Backpack (-3 USD)
Price history and price alert
Well, you won’t see price history chart, coz we have only 1 database record for this item (and price was 39.99 USD).
You can set price alert (for Banggood).