Your Cart is Empty

We added carbon fiber heating elements to a technical puffy, and the Ectotherm was born. Powered by your bike's 12V battery for heat that lasts as long as the ride.

Add To Cart
Ectotherm Insulated 12v Heated Jacket

Ectotherm Insulated 12v Heated Jacket


We added carbon fiber heating elements to a kick-ass technical puffy, and the ‘Ectotherm’ was born.

When you’re sitting around the campfire or lounging in your tent, it’s a super warm insulator with 100g body-mapped synthetic PrimaLoft Gold insulation with Cross Core Technology. Connected to the bike, it adds a 6-panel carbon-fiber 3.5Amps/42w heating system powered by the bike. That extra warmth takes the edge off long, cold, wet, pavement stretches, keeps you warm on high alpine passes, adds new enjoyment to early spring and late fall trips, and ensures you’re ready for anything a multi-year/multi-season RTW journey can dish out.

The Ectotherm is your solution for staying sane and happy when the weather turns brutal. The name comes from Ectothermic, a scientific term for animals that exchange body heat with external sources. Like a lizard basking on a hot rock.


Unlike conventional heated liners the Ectotherm is a fully functional stand-alone synthetic insulation layer. By combining the functionality of a technical puffy and a heated liner we’ve added even more performance and versatility to a layer that we rarely leave home without. Now you can enjoy the comfort of onboard 12V heat without over burdening your pack space. Pair it with heated grips and hand-shields to create the ultimate minimalist heat system for backcountry and RTW travel.

Built with 100g of PrimaLoft Gold Insulation with Cross Core Technology at the core and 60g in the underarms to reduce bulk under armor, the Ectotherm is well equipped for any cold weather trip. This high-tech insulation combines PrimaLoft Gold, with aerogel technology, to provide up to 52% more warmth than the same weight of PrimaLoft Gold Insulation alone. This enables us to achieve both enhanced warmth and decreased weight. Integrated directly into the fibers, aerogel further enhances the performance of synthetic insulation. Now not only will it perform better than down when wet, it will also perform better when compressed under armor.

To further battle the chill of riding in the cold, we added 6 thin, flexible carbon fiber heat panels in the collar, arms, left and right chest and back. Activate the heat with a hem mounted controller to toggle through 3 levels of 3.5amp/42w heat to maximize comfort. The system is powered by your bike’s 12V battery (wiring harness included) for heat that lasts as long as the ride. When it comes to cold weather riding the Ectotherm Insulated 12v Heated Jacket is a powerhouse of comfort when pushing the boundaries of riding season.

  • Six thin, flexible carbon fiber heat panels (collar, arms, L/R chest, back)
  • 12v/ 3.5 Amps/ 42w. Three levels of heat – low - 38°C/100°F, medium – 45°C/113°F, high - 52°C/126°F)
  • Stowable, easy access control tab
  • Powered by 12V motorcycle battery (battery harness included)
  • Simple one-wire, coax connectivity to bike
  • Body-mapped PrimaLoft Gold with Cross Core Aerogel Technology (100g in body, sleeves, 60g in underarm/gusset)
  • Two zippered hand pockets, one zippered chest
  • Left-hand pocket converts into a stuff sack
  • Elastic cuffs
  • Stretch woven thumb loops
  • Articulated fit
  • High-performance DWR (Durable Water Repellent)
  • Weight of garment: 1.57lbs / 0.7kg (size L)
  • Ethically produced in Bangladesh
  • Face Fabric - 100% Nylon Ripstop 30d x 30d 45g/sm
  • Lining Fabric - 100% Nylon 30d 44g/sm
  • 100g PrimaLoft Gold with Cross Core Technology (Body)
  • 60g PrimaLoft Gold with Cross Core Technology (Underarm/gusset)
  • C6 DWR (Durable Water Repellency)
  • YKK Zippers 

The Ectotherm is designed to be worn under body armor - if you want to wear it over armor, please size up. 
All measurements are BODY measurements.

  • Size Guide
  • Model is 6ft, 175 lbs, and wearing a size L



Product Care

Visit our Help Center for Product Care info.


We never cut corners during development or manufacturing, so we stand behind our products. If one fails due to a problem with materials or workmanship, we'll make it right. All Mosko Moto products include:

Limited Lifetime Warranty

'Limited' means it does not cover:

  • wear & tear
  • neglect/misuse/abuse
  • aesthetics
  • sun degradation
  • modification and/or use for a purpose other than what the item was designed for

Crash Care Program

Pair With

Check out our Protection Collection for upper body armor and be prepared for all kinds of weather with the Basilisk Jacket or RAK Pullover

Customer Reviews

Based on 367 reviews
Too Hot, Too Long

I really wanted to love this jacket, as I love my Mosko luggage.. But at 5'10 the jacket is way to long, practically a waist coast, and impossible to wear comfortably under gear without bunching up on bike. Equally disturbing is even the lowest heat setting is far too hot, even when wearing a good thermal layer between skin and jacket.
Mosko please introduce "short" sizes and tone down the settings (or add a lower one) and I'll buy again.

Justin Strong

This jacket is amazing! Comfortable, warm and looks great.

Knut Vidar Moløkken
Norwegian first choice jacket

Perfect for the Norwegian weather. With four seasons in one day it’s perfect to have a jacket that you can adjust the temperature. I recommend this jacket.

Chris Heaton
Fits perfect, and love the product

Nice features, fitted according to dimensions, and great quality.

Lukas Rippeon
Amazing quality

This was first purchase from Mosko by far so if the best gear I have ever purchased will not be my last.