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Firstgear Heated Pant Liner
  • Firstgear Heated Pant Liner
  • Firstgear Heated Pant Liner

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Firstgear Heated Pant Liner

Thr Firstgear Heated Pants Liner is form fitting, with a close fit for optimum heat transfer to body. Made of Spandex fabric allowing full range of movement for any activity and fits easily under your outer garments. The Heated Pant Liner is designed to keep you warm when plugged into a DC power source.


  • Packs into its included zippered pouch
  • Heated zones cover thigh and knee
  • Integrated sock plugs stow in their own zippered pockets when not in use
  • Coaxial plugs
  • Performance fabric: Anti-bacterial treatment prevents odors and Moisture Management wicks moisture away from skin
  • About 35 watts, 2.7 amps at 12.8 volts
  • 1-year limited warranty on liners–lifetime warranty on wiring

Make sure to check out our Firstgear Heated Gear Buyers Guide

Note: Heat Controllers sold separately.

Firstgear Men's Heated Pant Liner Sizing

Size Waist (in)
SM 30-34
MD/LG 34-38
XL/2XL 40-46
3XL 48-52

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How To Measure

W Waist Measure around your natural waistline, around the top of the hip bones, inline with the navel while keeping the measuring tape parallel to the ground.
Product Style RevZilla Item # Manufacturer Product # Availability
SM 709887 951-2952 In Stock: Ships within 24 hours
MD-LG 709888 951-2953 In Stock: Ships within 24 hours
XL-2XL 709889 951-2954 In Stock: Ships within 24 hours
3XL 709890 951-2955 In Stock: Ships within 24 hours


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We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

Write a Product Review for a chance to win our monthly $100 giveaways.
Firstgear Heated Pant Liner 4.7 5 7 7
Firstgear heated liners for the win. I bought the heated jacket liner first and liked it so much that I ended up buying the pants, gloves and socks as well. This is absolutely great stuff. Fully adjustable temperature controls react on the fly. The heat spectrum goes from, I'm not sure its working all the way to wow thats warm. I paired my liners with a good waterproof adventure-touring jacket and over-pants and I just couldn't be happier with the set up. I made the investment for a trip to Nova Scotia later this summer and if the liners continue to work like they have thus far it'll have been worth every penny. These liners have extended my riding season by at least 2 months every season. Thats a very big deal when you live in a place that really only has about 4 months of truly warm biking weather. May 17, 2016
Awesome Pant liner This Firstgear heated pant liner is a very good product. The heat is even across the legs and makes a world of difference in cold weather. I now have the whole outfit, vest, pants, and socks and I have no trouble riding in the winter as the long as the traction is good. I am 5'10" 150 lbs with a 31 inch inseam and a 32 inch waist and the small fit spot on. March 20, 2016
Heated pants Good value and correct sizing great for cold weather riding , December 14, 2015
Warm & Toasty! Pant liner is great for those cold days when you still got the itch to get out and ride. November 10, 2015
Fits great under jeans These work great at 40-50deg. I use them with my HD jacket, gloves and dual thermostat. I have ridin in 20 deg weather and still fine but was cold. February 16, 2015
Wear them under your pants. I'm 5.10, 165lbs, wear 32x32 jeans and 41" chest. I bought the jacket, pants, gloves and socks with a duel semi mount heat troller. Jacket is a size Med and I wear it over a tea shirt and under my riding jacket. Fits perfect and is light weight. Not bulky at all as the picture suggests. Pants are a size Med/Lrg. I wear them under my jeans and riding pants. The pants are not bulky either. The socks are a size Lrg. I'm a size 10 boot, and I wear them over regular cotton socks. For the best performance, you want to keep the jacket and pants close to your skin. I have tried wearing the pants over the jeans, but under my riding pants with decreased heat performance. The gloves are a size large and fit well. They seem to be water proof thus far. The jacket, pants and socks heat very well at temps down to 15deg when worn under normal riding gear. The gloves are good down to about 25deg, then fingers start to get numb. The gloves don't seem to be as good at heating as the rest of the gear, but they are quality made. I have tried every hookup combination. But hooking the jacket, pants and socks on one side of the troller, and then hooking the gloves to the other side works the best in my opinion. You can turn the gloves all the way up, and the other components heat so similar that they work well together on about a med, to med high setting. The heat troller is quality and well maid. It has flashing LEDs that are red and yellow, and flash at different rates depending on the setting. Slow flash/low, fast flash/high. All and all I am very satisfied. Quality gear and great service. March 16, 2013
Very Comfortable Great value and comfort. good heating. would definatly recommend. February 4, 2013
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