Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. Only one coupon available!
Link: Banggood product page
Coupon (24.11 USD): BGCS5227
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply 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): BGXiaomiShorts1, TTxBG10, BGSMB5, BGXM1459, 502C6B, 0e7f33, FBCOUPON1
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Uleemark Sports Quick Drying Shorts.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).