Just check coupons out (with price alert and history). What is best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Fabric: 210T Polyester, Ribs: Aluminum + Fiberglass + Stainless Steel, 395g
Banggood
Banggood warehouse is located in China. I found coupon for you. Check this out.
Link: Banggood product page
1. ($28.56): BG8ReviTrage
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 99a5c3, 99a5c5, 99a5c6, Alibuy02, Ineeditil30, 99a5c20, 93e4ec, e7afa2, 99a5co, 502C6B, e2bcea, TTxBG10, BG90FUN, SPT20, BG90FUN01, AFfbG10, BGCD1, BGC15, BGA10351, BGc9ae42, BG13thMI20, BGTU923, BGbuywithus351, BGXM351, BGD11S01, BG129HW, BGBFCR02, BGH5351D, BGCITYADS2019, BG90FUN2, BG90URA, BG90FUN5, BGMPB2020, BGAFF10OFF, BGIL04B, bGhOnEy10, BG45RAIN, BGCN1RAIN, BGSUMMER7, BGUMBRELLA1, BGdragonBoat, BGTRIP01, BGHOTSALE5, BG90FUN22, BGEE90FUN, BGOW11, BG90FUNNN, BGALIBUYF90, BGEUOD1, BGDC756, BGUCB27, BGCDC069, BH90F11, BGh5708, BG90FS01, BGDJ555AF, BGCuponation10, BGDJ4563, BGT3696, BGTY503DL, 13f142, BG10OFFAFF, BGpy719w, BGwhielabel, BGce28d5, BG10OFFAFF1, BANGGOODSD, 6GSGIT, BGBF20off2, BGbd8cc0, BGAlerabat1, Terence, Tabby20, 2203ActiesNL, BGd280bb, BG1efeb0, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, hoNEYbGdeAlS, BGJUNEGSG9, Cuponation9, BGe8dbfc
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 2 another warehouse/versions!
1. China – Xiaomi 90 Fun Umbrella Black ($-3)
2. Europe – Xiaomi 90 Fun Umbrella [EU] ($-3)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi 90 Fun Umbrella Gray.
Price records source(s): Gearbest, 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)).
. There are no coupons for this product in Banggood. I’m not sure about the price, coz I have only 1 record(s) in my database.