Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Xiaomi 7th Silicone Swimming Cap (-3 USD)
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. Coupons for Xiaomi 7th Silicone Swimming Cap White? Nope, there’re no coupons in Banggood.
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): 99a5c2, aff7off, 0921e0, 99a5c1, 502C6B, e2bcea, TTxBG10, BGOD1, AFfbG10, bGhOnEy10, bgshOOp10, BgoFErTaSchInA10, BGC15, BG10OFFAFF1, BG4d9120, BGAlerabatod
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Xiaomi 7th Silicone Swimming Cap (-3 USD)
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi 7th Silicone Swimming Cap White? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).