Size: L/XL/2XL/3XL, Anti water splashing and Prevent cold, Other Size: ID: 1379151 (S / M / 4XL), Fever Area: Back + Cervical Spine, Function: Keep warm, please pick this link to buy: ►size, Power Supply: 5V/2A Portable Source (Not Included), Power Supply Interface: USB, Color: Black, Age Of Application: Adult Men.
Basically copy coupon, view price history or create e-mail price alert. What is 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 code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($37.95): BGSCM11
2. ($40.54): BG589b2e
this code has to be applied 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/i1u
Old coupons (from the oldest to the newest): AMPrime01, Automo, BGMOTOWC2, ea1da3, BgAuMotor, BGAutos, bGhOnEy10, BGCARELEC, BGINMO, 7d18f7, BGAFF10OFF, BGCuponation10, 13f142, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BANGGOODSD, 2022ACTIESNL, BG00c906, Terence, Tabby20, 2203ActiesNL, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, BGAUTO22, BGdcbfa8, BG8ReviTrage, Cuponation9, BG1b4e97, BGSCM75
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for Men USB Heated Warm Hooded Winter Jacket. The lowest price was: $37.95.
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)).