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Like a Jackalope, the Jackaloft brings the best of two worlds together in a single ultralight insulation layer. The ‘Jack’ comes from ‘Jacket,’ while the ‘Loft’ comes from the body-mapped, fully synthetic, PrimaLoft® Gold insulation. It’s super low profile, yet it’s also incredibly warm and highly packable, and it preserves its insulating properties even when compressed under body armor. We designed it specifically for layering under an outer jacket and armor on the bike, but it works just as well around camp or in town.
Don’t let its humble silhouette fool you, the Jackaloft insulated shirt-jack punches way above its weight. Ultralight, highly compressible and super warm, the Jackaloft uses fully synthetic PrimaLoft® Gold insulation with Cross Core technology. This high-tech insulation combines PrimaLoft's top of the line fibers with aerogel (google ‘aerogel’ for more info!), to provide 52% more warmth than the same weight of PrimaLoft® Gold alone. This enables enhanced warmth and decreased weight, resulting in a highly packable, ultralight garment.
Originally developed by NASA, aerogel is composed of more than 95% air, and is the lightest solid material known to man. It’s also one of the most effective insulation materials ever made. When integrated directly into synthetic fibers, aerogel dramatically enhances warming. This isn’t just something you see in charts and stats, you’ll immediately feel the effects yourself when you wear the Jackaloft. On a moderately cool evening, you might be surprised to find yourself leaving the Jackaloft partially unzipped, which is surprising given its size and weight. We packed as much warmth as we possibly could into this very small package.
The size of the Jackaloft is important not only on warm days when it’s packed away on the bike, but also on cold days when you’re wearing it under armor. With insulation, body armor, and an outer shell, one of the biggest challenges we face is how to layer-up without making our riding kits so bulky that we can’t move around. Another challenge is that body armor, a shell, and constant wind pressure on a non-windscreened enduro bike can compress your insulating layer, removing its loft and reducing warmth, similar to what happens on the bottom half of a down sleeping bag when you lay in it. That’s why the Jackaloft uses synthetic insulation rather than goose down: synthetic fibers will maintain their loft even under pressure. That will keep you warmer on the bike.
We styled the Jackaloft as a shirt-jack for a very practical reason: we want this to be the only insulating layer you need on your trip. If we can disguise a highly technical insulated riding layer as a badass garment that you’re stoked to wear around camp or on your next Tinder date, then that’s one less thing you have to pack. Wear it everywhere.
*Model is 1.8m tall, 79kg, and wearing a size L jacket
Ethically produced in Bangladesh
Limited use so far but fits very well, very similar to arcteryx sizing. Layers nicely under my latitude jacket. Heading north shortly will get a workout.
The jackaloft is one of the teams favorite apparel pieces we produce. It's very warm on and off the bike so it makes it great for many different circumstances.
Finished a 3100 mi trip last week, saw rain , snow, hail, dust storms, 50 mph winds, couldn’t catch a break on weather on on the final day spent over 6 hours in driving rain, the only gear that didn’t fail was my Mosko hood tank bag and my new Jackaloft. Water pushed through my goretex gear, through my dry bags, and literally filled my boots. The saving grace through my most miserable ride to date was that even wet the Jackaloft still kept my core warm and provided enough comfort to push on to home. I’m probably between L and XL and glad I went with XL. Really nice, quality material, worked great on and off bike, temps from 34F to 65F were comfortable with venting. Happy to support a company making great products. Thanks
WOW! That sounds like a trip that you won't be forgetting anytime soon. We're glad to hear that the jackaloft was able to keep you warm and that the hood was able to keep your stuff dry.
A friend of mine bought one of these jackets. I was impressed with it and pulled the trigger on one for me. I love it!! Nice and snug (on an old fat guy) but it is extremely warm!! Can't wait to take it to Alaska in couple of months!!
As expected from folks who “walk the walk”. Very good customer service too!
This is exactly what I was looking for. A slimmed down insulated jacket I can layer. It’s surprisingly warm for being so thin. It’s a good looking quality piece like every Mosko product I’ve purchased. Minor annoyances are, I do find the collar a little floppy and wish it didn’t have one or it had more structure. I’m 5’11” 165 athletic. I wear a medium in everything so I ordered a medium in this. It’s a little too snug for me in the shoulders, arm pit area and across the chest to have full range of movement. I’m not a very big guy but it verges on too small and I would have liked to be able to try on a large for comparison. I wore it around for a day though before I discovered that was a kind of a problem. Also, the color is not quite black it’s more of a dark blue/grey if you are annoyingly picky like me and like your blacks black. Other than those minor issues this piece is a winner.