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Microwire Jacket Liner (GJKLN)
Microwire Motorcycle Jacket Liner
Item:   GJKLN    Gerbing's

These are the new jacket liners with Microwire technology. Gerbings developed Microwire™ in response to a Department of Defense contract for heated clothing for Special Ops Forces. Of the conventional heating systems employed in heated motorcycle clothing at the time, none of it was up to the stress and strains that a soldier would put these items through, especially the demands of Special Ops. Carbon fiber wires were too brittle and thick, and common copper wire heated too slowly and eventually the military was able to get it to fail. In a nutshell, the military wanted something stronger and more durable, thinner and lighter, and which would heat more rapidly. The answer to all these requirements was what we call Microwire™. And when we were done developing it, we patented it. The wire in Microwire™ consists of bundles of hundreds microscopic stainless steel strands, each about 12 microns thick (about 1/4th the thickness of a human hair), twisted and wrapped in a thin Teflon-derived coating. Because heat escapes these strands from their circumferences, and because there are so many of these strands and they’re so tiny, Microwire™ heats instantly. No more waiting for the heat. It's there RIGHT NOW! In the R&D process, we found that by altering the number of these strands in each wire, we were able to custom-tune the amount of heat. Additionally, by using these wires either in a heating pad, in a woven pattern or in our patented ribbon matrix, we could further tune how the heat is delivered. More, when using the ribbon matrix, we could refine the heat delivery to an even greater degree by altering the number of wires in the ribbon (from 2 up to 6). It is this “tunability” to each garment application that is one of the major advantages of Microwire™. But it doesn’t stop there. Being as tiny as they are, and made from stainless steel, our strands (and therefore our wire) is incredibly flexible and exceptionally rugged. Also, at about .025” (vs. about .075 for the copper resistance wire that’s been in use all these years), Microwire is exceptionally thin. So much so you can’t feel the wires. Another advantage is at this tiny size we’ve been able to reduce more than a pound from the weight of our Jacket Liner, with similar weight reductions in our other Microwire garments. So, in the end, Microwire is thinner, lighter, stronger and more durable. And it heats up in just 10% of the time that the old copper wire required.

These Microwire motorcycle jacket liners are constructed from a Teflon - coated, wind-resistant, soft nylon shell and designed to be worn under outerclothing. Insulated to be thermally efficient along with being wind-resistant and highly compressible. The perfect garment to pack for those trips with unpredictable weather conditions. All jacket liners include the PDU(Power Distribution Unit) that simplifies plug connection and eliminates any dangling cords. The PDU is a soft rubberized plastic component sewn mounted onto the inside lining of the Jacket Liner. The PDU houses the main power plug that distributes power to the Microwire panels strategically placed throughout the garment. These liners also feature Plug Access Pockets to the sleeves of the jacket. These pockets have zipper enclosures and allow the user to store their glove plugs when not in use. Some other features include a silky soft, micro denier fabric lining on the collar and a rubberized zipper pull. The Jacket Liner displays the Gerbing's corporate logo on the left chest with a striking rubberized emblem and includes a subtle but attractive embossing of the logo on the inside lining. Every article of Gerbing's heated clothing comes with a fused battery harness that connects to the battery and plugs into the jacket, gloves, etc. No additional wiring in needed for this to work although we should point out that while connected to the battery the garment will be on full. The purchase of either a Gerbing's on off switch or a Gerbing's temperature controller will make this garment much more comfortable.


»   Heating pads on the chest, back, collar, and sleeves
»   Compressible, water-repellent, durable, Thinsulate® insulation
»   Teflon® coated, wind-resistant, soft nylon shell
»   Inside and outside pockets
»   Silky soft micro denier collar
»   Form-fitting patterns and sizing to fit snugly and easily under your outer garments
»   Glove plug pockets placed on the sleeves secure the plugs when not in use
»   Power Distribution Unit eliminates dangling cords
»   Dual 2 wiring configuration (for one user only)
»   Lifetime warranty on heating elements
»   Incorporates Gerbing's Microwire® heating technology that uses micro-sized heating fibers to surround the body with warmth.
Heat Microwire® Heat Technology
Source 12-volts DC
Current 6.4 amps
Watts 77 watts
Surface Temp 135°F +/- 5°F at 32°F

Sleeve Size: With arm in riding position, measure from the back, start from the center of neck, over point of shoulder, around back of elbow and down outside of arm to the wrist. If your sleeve measurement falls between two sizes, then go up to the next sleeve size.


Actual Chest
Sleeve Length
Regular Size  
Sleeve Length
Long Size
33 - 34 2XS 29 - 30 31 - 32
35 - 36 XS 31 - 32 33 - 34
37 - 38 XS/S 31 - 32 33 - 34
39 - 40 S 31 - 32 33 - 34
41 - 42 M 33 - 34 35 - 36
43 - 44 M/L 33 - 34 35 - 36
45 - 46 L 33 - 34 35 - 36
47 - 48 L/XL 35 - 36 37 - 38
49 - 50 XL 35 - 36 37 - 38
51 - 53 2XL 37 - 38  
54 - 57 3XL 37 - 38  
58 - 61 4XL 37 - 38



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