Keis Heated Apparel Pantalón calefactable T103 pantalón calefactable

T103 · SKU W54-373552

T103 Pantalones Calefactables

£180.00 Or 3 payments of £60.00

Description

The KEIS T103RP Heated Trousers are slim, breathable under-layers designed to fit under armoured trousers without adding bulk. Using Micro Alloy-Fibre heating technology, they deliver even warmth across the thighs and knees. A controller connection flap enables the use of either standard or Bluetooth KEIS Power Controllers (Sold Separately). Compatible with bike 12V systems, they also accept a portable KEIS battery (Sold Separately) for off-road warmth.

Battery Run Time CalculatorSee how long each battery lasts

Battery Run Time Calculator Choose how you'll power the garment to see the heat it holds and how long it lasts.Step 1: Choose Your Battery

Step 2: Choose Your Setting

Step 3: Feel The Result

Heat output

Run time

Run times are estimates. Cold weather, external factors and a higher settings will shorten them. Estimates are calculated on a medium garment.

Talla — Pantalón 46 (80CM/32 pulgadas) XS

In stock, ready to ship

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In the Box

T103 Pantalones Calefactables

Cable de alimentación para vehículo

Pack de fusibles para prendas Keis

Storage Box

Instruction Manuals

Specifications

Model - T103
SKU - W54-373552
Weight -
Output settings - Low 12W · Medium 22W · High 36W (12V)

Care and Washing

Hand WashableWash using warm water with light detergent by hand. Allow to completely air dry before turning on or connecting a power source.
Lifetime Warranty**Heating elements come with a lifetime warranty, if you notice they stop working or a hotspot is created reach out to our customer support.
Included Storage boxWe highly recommend storing your garment in its box for longer periods to keep it secure and clean. Do not store when wet and keep in a cool, dry location.

Always check the care label inside your garment for detailed washing and care guidance before cleaning.

Delivery

Standard shipping is 1-3 business days and is free of charge for orders over £50.

Warranty and returns

Heating panels carry a lifetime warranty. All other components are covered for two years. KEIS offers an exchange service, so if you order the wrong size you can send it back for a replacement. View more information here

T103 Pantalones Calefactables · Pantalón 46 (80CM/32 pulgadas) XS £180.00

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Rider reviews

What riders say about the T103

5 stars: 9 (69%)
4 stars: 3 (23%)
3 stars: 1 (8%)
2 stars: 0 (0%)
1 star: 0 (0%)

Work great but you need a controller

They work great and are connected to my ultraflex vest and gloves. Downside is that they go full hot (too hot) and put so much load on the power source on the bike, the fuse blew. Now have a controller for the trousers and all is well. Unexpected extra cost. Otherwise a 5.

Great product looking forward to putting to the test

Toasty

Purchased these for my husband as a Christmas gift. Wore them whilst riding on 5th jan, had to keep unplugging him as they got too hot. He hadn't put anything on under them. Excellent,comfortable and good fit. Only downsides are that theres no controller to control the heat levels. Also doesnt come with the attachment to plug the item into your bike.

Exellant heated trousers one of the best

T103 Heated Trousers

Fantastic addition and a must have if you buy the jacket, nothing worse than feeling the cold on your legs when the upper part of your body is warm.

These trouser are fantastic and do what they are supposed to do

Another great product.

I already have the jacket and glove, so the trousers were a no-brainer, and work very well as expected.

A must have for long distance cold riding conditions

I've had my T103s a few years now to compliment the J501 jacket I had purchased shortly before.
I also have a pair of G701 gloves now, too. When you are out riding with this set up on, you really do not feel the cold at all. I've even ended up breaking into a sweat if I'm pushing it a bit. This is one of slight downfalls of wearing this type of kit is that you have to remind yourself that the road and your tyres are still cold even if you're not.
Obviously, it makes sense to wear these garments under descent water resistant outerwear as I have discovered that the heating effect can be drawn away by draughty clothing.
Also be warned that you should wear another thin layer between you and the trousers. I didn't read the instructions when I first wore them, and when I returned from long ride, I discovered I had seared the tops of my legs. The markings remained for over a week. This means that you will be wearing at least three layers on your legs but as these are so flexible, I hardly notice.
If I have any criticism at all, it is that the controller lanyard is not long enough. When you are fully kitted up, it is very difficult to access the controller (and almost impossible with gloves on), as it does not hang over the waist very far and can ride up under you jacket and get lost. This can get annoying if you are on and off your bike frequently, because when you reconnect to the bike, each garment has to be switched on independently.
Regardless of all this, heated riding gear is some of the best money I've spent in motorcycling.

Game changer…

First day with my new heated trousers; who knew you can ride in cold weather and feel warm and comfortable after 3 hours? Comfortable, easy to control the heat, and no cold spots. I didn't even turn my Keis jacket on! Really impressed.

Great for winter motorway riding

I tend to only wear these on long motorway rides in the winter when the prolonged wind chill has an effect even on my legs. I've had these trousers for about three years now and they are still in great condition, with no signs of deterioration. If you ride in very cold weather for long periods, I'd recommend them.

love this item could have done with a size up though

Used these a few times now and not only do they fit perfect, but they keep me warm and when used with the controller they keep me just right no matter how long the ride.

Well made but far from perfect

Keis's heated pants are really, really well made. I would not be shocked if these pants truly lasted as long as a solid pair of blue jeans, and given that you are only wearing them one season out of four (unlike said jeans), you'll have them for life.

The heated panels also heat up instantaneously and work incredibly well.

But would I buy again? Probably not. Three criticisms:

1) Keis's connectors are proprietary to Keis, meaning that you need all Keis gear or none at all.

2) While the heat is great, the location of the panels is not that well thought out. To make the pants comfortable and to keep the heating panels close against the skin, Keis made the back half of the pants a stretchy material. This means that your lower back and your hips get no heat at all. In other words, the parts of your body that tend to get coldest on a motorcycle due to lack of wind protection relative to your knees, gets coldest.

3) The panels tend to slide inwards, heating your inner leg and thighs. Again, it's the outer side of our legs that need heating. If you've ever ridden a bike with a hot engine, you know that it gets nice and toasty on the inside side of your legs. It's the outside that needs the additional heat.

Answers

Frequently asked questions

Can I wear the T103 Heated Trousers directly against my skin?

We recommend wearing a thin base layer underneath the T103s, such as thermal leggings or technical underwear. This creates a comfortable layer between the skin and the heating panels, helps distribute warmth evenly, and makes the trousers easier to keep clean between rides. The T103s are designed to be worn close to the body for best heating performance, but they should still feel comfortable and unrestricted when layered under motorcycle trousers.

How do I power the T103 Heated Trousers?

The T103s are designed to be powered from a motorcycle’s 12V battery using the supplied KEIS power lead. This gives riders continuous heat while the bike is running, making it the best option for regular commuting, touring, and longer winter rides. They can also be connected through compatible KEIS heated jackets or bodywarmers, which can act as a power hub when building a full heated clothing system. A KEIS 12V 5000mAh portable battery can be used, but it is not the recommended primary power option for the trousers due to their higher power draw. If used, the battery must be stored securely in another garment or luggage, as the trousers do not have a dedicated battery pocket.

Can I control the heat levels of the T103 trousers?

The trousers feature a built-in controller connection flap, allowing riders to connect a KEIS Standard Power Controller or a KEIS Bluetooth Power Controller, both sold separately. The standard controller provides simple manual heat adjustment, while the Bluetooth controller allows heat settings to be managed from a compatible smartphone. This gives riders flexible control depending on their setup and riding preference.

Are the T103 Heated Trousers waterproof or windproof?

No. The T103s are made from breathable softshell material that offers comfort, flexibility, and light insulation, but they are not designed to be waterproof or windproof as a standalone garment. They should be worn underneath protective motorcycle trousers. The outer riding trousers provide the weather protection, abrasion resistance, and armour, while the T103s provide the heating and comfort layer underneath.

Can the T103s be worn off the bike?

Yes, they can be used off the bike if powered by a compatible KEIS 12V portable battery, but they are primarily designed for motorcycle use. They can be helpful for cold-weather camping, outdoor events, pit stops, or working around the bike in low temperatures. Because they are slim-fitting heated trousers, they are not intended to be worn as standalone outerwear. They should be worn underneath another garment, and any portable battery must be carried securely in a suitable pocket, jacket, bag, or luggage.

Can the T103 Heated Trousers be connected with other KEIS heated clothing?

Yes. The T103s can be integrated into a wider KEIS heated clothing setup, such as with a heated jacket or bodywarmer. This is ideal for riders who want balanced warmth across both the upper and lower body during colder rides. When combining multiple heated garments, always make sure the power supply, cables, and fuse rating are suitable for the total system load.

What type of rider are the T103s best suited for?

The T103 Heated Trousers are best suited to riders who spend extended time in cold conditions, including commuters, tourers, instructors, couriers, and all-season riders. They are especially useful for anyone who already uses a heated jacket but still feels cold through the legs, knees, or thighs. Adding heated trousers helps create a more complete winter riding system and can make a significant difference to comfort and concentration.