Nose Buckle 3Ocs, Gasket: Silica gel, Mirror lens: Polycarbonate, Side slip buckle: Polycarbonate, Swimming Goggles 1PC, Swimming Goggles Box 1Pc, Mirror band: Silica gel, Earplug 1 Pair.
Check coupons or create price alert down below. 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 coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($39.26): BGHB218
2. ($42.96): 2022ACTIESNL
3. ($43.42): BG00c906
this code has to be applied in your cart 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): ML15%Pro, vipupgrade8, 502C6B, bgshOOp10, bGhOnEy10, BGHB20, BgoFErTaSchInA10, BgcLuBofErtA10, BGAFF10OFF, 13f142, BGCuponation10, BGHONEY2110, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BANGGOODSD, 6GSGIT, BGHealth06, 00c906, BGHealth10D
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi TOSWIM Professional Swimming Goggles. The lowest price was: $20.99.
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)).