42, 44, Upper material Fabric, Size 40, 43, Color Black/Grey, Non-slip index Non-slip, 41.
Basically copy coupon, view price history or create e-mail price alert. What is best price?
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.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. We have found one coupon for this product!
Link: Banggood product page
1. ($49.09): BGShoes111
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): TTxBG10, AFfbG10, BGVDay10%off, BGAFF10OFF, BGTT10, bGhOnEy10, BGCS5227, BGwhielabel, 13f142, BG10OFFAFF1, BG4d9120, BG1074d6, 00c906, BG98a77f, 2022ACTIESNL
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Xiaomi ULEEMARK Popcorn Slippers 2.0 is here. The lowest price was: $22.99.
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)).