Mobile Warming Heated Coat/Jacket Olive Green with 2 Batteries Size Sm-Med

There is not a size tag so please see measurements. It is a small but measurements seem like a medium. I purchased this new two years ago and have worn it a handful of times. I ordered an extra battery when I first bought it because the battery only stays charged for a few hours if you have it on the highest heat. There are four levels and it does keep you warm. I have washed it in the washing machine three times with the pockets zipped and then hung it to dry and it works every time afterwards even though it says to hand wash. There is some pilling on the sleeves and a faded whitish mark (detergent ?) also on the sleeve, but other than that it’s perfect.