Keis B601RP UltraFlex Heated Bodywarmer - Black / Red

Used once with the heating element on and once just as a body warmer and on both occassions was brilliant. New soft and stretchy material. Love the fact it has no sleeves so arms not cramped once jacket goes on. Really easy to use. Fixed wires direct to battery which was easy to do so not reliant on batteries. Going Scotland in September and will be using it for there and colder trips/days out over winter :)

Decided to purchase one of these just before a recent tour around the west coast of Scotland. Weather on the Thursday was cold and wet and using this under my 7 year old Rukka gear meant that I stayed dry and warm.
It comes with the controller which is a must have because i only ran it on the lowest of the 3 settings. It made a massive difference and I felt perfectly comfortable for the entire trip.
Initially I did keep forgetting to unplug when leaving the bike but the connection is designed to come away without too much effort but holds strongly enough for it not to be a problem when riding.
The heat distribution was even over my chest and back with a nice level of heat around the neck.
It's not at all bulky and felt comfortable over my merino wool base layer, with the vest in between that and my jacket.
Size wise I went off the sizing chart and ordered a medium. The fit was slightly big but I think the small would have been too snug. They recommend a bit of movement should be available and the medium allowed that.
Thoroughly recommend and wish I'd bought one years ago.