Aliexpress
Click here… to search for SOMAN 24K Carbon Fiber Fluorescent Motorcycle Helmet on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (199.99 USD): BGcfebaf
Coupon (269.16 USD): BG589b2e
(CouponsFromChina.com tip: put item in your cart and apply coupon code there 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): BGd02e68, BGdcbfa8, BG8ReviTrage, Cuponation9, 9OFFSUMMER, BGSCM75, BGd1725b
(probably won’t work, but you can try them out)
Price history and price alert
Do you need price history chart (for all/most countries) for SOMAN 24K Carbon Fiber Fluorescent Motorcycle Helmet? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).