Keis T103RP Heated Trousers - Black

Yet to be tested in earnest but I am confident they will be great. They didn't come with a regulator but fortunately I already have a vest and a jacket both with one so not a problem for me. They are a snug fit and fit under my KLIM trousers very well. Very happy so far.

This is a must have on cold days, they compliment the Keis heated jacket and are easily connected.

I tried the Keis gear out on a frosty morning & it was like riding in the summer.

Only downside is that you need to buy a heat controller or you get too hot, but overall they do exactly what you need

I ride all year and of all the items of heated clothing I have these trousers have made the biggest difference to keeping me warm - frustrating as I bought this item last when if I'd bought first I might not have needed the other bits.
That said they aren't perfect.
They warm up fast and the heat pad location on the front of the legs works great for me.
My problem is mainly how the wires connect to the jacket and my heated insoles, and how the controller connects to them.
The fleece lining and snug fit makes it very difficult to put them on over socks and base layer.
And the bulk of the controller and connector block for both the trousers and heated jacket can be uncomfortable when sat on the bike.
They are thick too and you might have restricted movement once you have your outer layer on.

First, Keis state that you shouldn't wear these without something underneath which kind of renders them pointless and in a lot of cases, unsuitable as not everyone can fit 2 bases layers under their trousers. It's also strange as they are fleece lined themselves.
Personally I found the sizing weird. I got a pair that were a little loose around my waist, perfect length but very, very tight to get in to and a real struggle with a base layer on. I'm 5'8'' and 70KG so I do not have big legs. Worse is that the crotch is too low so if you try to swing your leg over your bike you'll likely rip the trousers which is something people do comment about. For £200 I was very disappointed.

I bought a vest first and I'm really pleased with that so I bought this trousers because the underlayers were not enough to keep my knees warm. I used it in -6 degree, set it to max power and kept me warm and comfortable, top and bottom. size wise usually 36 waist(M) fits well, this fits spot on, a bit more on the tight side so I recommend to size up for I bit more space.

I bought these to complete the set of Keis jacket and inner soles which I've found to be really great.
These trousers make it really easy to connect to the inner soles so now I don't have run long cables through my regular trousers.
Two points which I don't like about these trousers though - the heat seems mainly focused on the front of your leg, with nothing at the sides which gets most of the wind blast and makes the non-heated bits feel colder in comparison.
Keis should have put the controller on the other side, there is now a lot of bulk on the left hand side with two controllers and all the connecting cables.
So they are ok, and they will keep me riding through winter but could be better.

The best trouser inner going.
Heat at the touch of a button and controllable temperature too..

I already had the jacket and gloves so thought I'd complete the ensemble. Works really great and it's very comfy, absolute game-changer. Size wise just pick your normal trouser size and you should be fine. The service from Sportsbikeshop is just outstanding too.

I went for a 4 hour round trip in 1 degree (to SBS Boston) and not once felt the cold with these, so highly recommend.

Just note that if you combine with the jacket, it needs a seperate controller. I thought a single controller on the jacket would control both, but it doesnt, so on first try my legs got roasted.

I bought the medium and think the length is just about right for me with a 32inch leg.

Theres a flap that the controller plugs in to, which is intended to sit over the waist of the trousers, doesnt quite work for me as i usually zip my jacket and trousers together but works fine if they arent.

Had to exchange these as after one days wear they were split at the crotch.
Sportsbikeshop changed them without any hassle, yet to try the exchanged pair

I got the trousers with the Jacket and they work very well together.
The trousers fit well and are not too bulky.
The Jacket came with a free constant power controller which the trousers do not.
Unfortunately the Jackets power controller does not control the trousers heat levels and you need to purchase a separate one for the trousers otherwise it blasts full heat which is often too hot.
It would be nice if one controller would work for both or that they include the additional controller with the trousers which are already quite expensive.
You definitely need a thin base layer between the trousers and your skin.

Cut a long story short, this is my second pair. 1st pair I lost or left them in a B&B in Scotland. They proved the cost in warm riding the highlands in February. You need this I use the triangle heat switch works great toasty legs paired with my heated inner soles you'd think it's summer, cannot rate these enough. Highly recommend them, they definitely extend your winter riding and one last, thing an awesome service from SBS

These are nice and warm on those cold days. I bought the correct size to fit me and they are a good fit. Material is stretchy so holds close to your skin to keep you warm. Heat isn't too hot, so if you are going to be riding on motorways or duel carriage ways then I would suggest the top heat setting.

I am so glad I have invested in these this year, I was a bit worried about the sizing and whether they would fit under my textiles comfortably, I followed the sizing guide on the keis website and thankfully they are spot on, the material is lovely and stretchy making them very comfy, the heat panels are down the front of the legs and get really hot, I find the medium setting perfect, connected to my jacket and gloves I am lovely and warm and have been able to continue riding on longer rides throughout the colder months I cannot recommend keis gear highly enough and with the excellent next day service and free returns from sportsbikeshop what's not to love.