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

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Firstgear Heated Pant Liner Videos

Firstgear Heated Pant Liner

Form fitting, 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. Pant Liners are not Unisex. The Men's and Women's Pants Liners are sized differently. And why not, since men and women are built differently.


  • 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 engineered by us for the best connection possible
  • 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
  • This garment is designed to keep you warm when plugged into a DC power source
  • 1-year limited warranty on liners–lifetime warranty on wiring
  • Heat Controllers are sold separately

Make sure to check out our Firstgear Heated Gear Buyers Guide

Men's Heated Pant Liner

Size Waist Measurement (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.

Click here to see the full Firstgear Size Chart
Product Style RevZilla Item # Manufacturer Product # Availability
SM 709887 951-2952 In Stock: Ships next business day
MD-LG 709888 951-2953 In Stock: Ships next business day
XL-2XL 709889 951-2954 In Stock: Ships next business day
3XL 709890 951-2955 In Stock: Ships next business day


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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.

See our full Shipping Policy for further details.


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 4.5 5 4 4
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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Have a functionality, fit, or otherwise product-specific question about the Firstgear Heated Pant Liner? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

Firstgear Heated Pant Liner
Already Asked: 3 Questions, 13 Answers
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RevZilla Store asked: Why did you choose this?
John T: I have tourmaster heated chaps that also have a thermal fill component to them. The chaps work well to heat the front thigh and shin but add a lot of bulk (regular pants or jeans + chaps + armored overpants = bulk). I figure if I can wear these under the pants I'll eliminate some of the bulk and still get the warming benefits for the front of the legs on +30 degree trips. Under 30 degrees I'll use the chaps for the added thermal insulation. Nov 3, 2015
Lorence B: Already own other 1st gear heated clothing happy with product recommended by other IBA riders Nov 2, 2015
Joseph A. S: My legs are cold out there! Jan 10, 2015
BRAD P: The price was right, and to keep warm Dec 20, 2014
E M: Friends recommendation Dec 2, 2014
Douglas C: First time buy will let you know after winter ride thanks Sep 5, 2014
Wilson I: I had read test report on firstgear equipment and it sounded good Jun 5, 2014
Joshua H: I'm looking for something relatively lightweight to wear under Aerostitch Transit pants. Out of the heated pants (Gerbing, etc.) this was the only one that seemed like a viable option. Mar 1, 2014
scott b asked: Will these work plug into my gerbings control unit (in my jacket liner)? Oct 5, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
Joshua H: Yes. You may need a Y-cable or some other adapter as the cable on these ends in a female end at the waist. Oct 5, 2014
Reply to Joshua Good answer? Yes (1) No (0)
Wilson I: I can't answer that question all my gear including the controller is first gear brand .you can email first gear direct with questions Oct 5, 2014
Reply to Wilson Good answer? Yes (0) No (0)
Bradley R: Sorry, Scott; I donot know. All my heated clothing is First Gear. Oct 5, 2014
Reply to Bradley Good answer? Yes (0) No (0)
Douglas C: No sure I've only ever had firstgear clothing Oct 5, 2014
Reply to Douglas Good answer? Yes (0) No (0)
A shopper asked: Will these pants work with my Gerbings heatroller (jacket liner)? Oct 5, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
Richard G: Can't say. Bought both parts from First Gear. Best take your wires with you to a shop and see if they mate. Oct 19, 2014
Reply to Richard Good answer? Yes (0) No (0)