I went from Chennai to Amritsar and only because of this I was able to survive the chilling subten temperature of Amritsar at 5 am in the morning ! Honestly speaking when I was buying it, I was quite skeptical that whether I should go for it or not. But as I was not having any options so I ordered it. Trust me it's worth every penny !
I am writing it after using 3 months , anyway it is useful only when you travel or living in less temperature areas,for other places the regular usage will be very often so need for this is very limited time in the whole year ,consider this before buying the product can only useful when the temperature range is 4 to 20 degrees centigrade,if less than that I recommend to use other jackets on top of this it is easy to wash