Is it a Shacket? or a Shirt-Jack? 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.
Ethically produced in Bangladesh
Jackaloft Insulated Shirt-Jack
The jacket is beautifully made and very stylish
Sadly for me the fit did not suit my body type - I am 1.78m, 88kg with fairly stocky/muscular build. For me the large was too tight across the shoulders & back, although it fitted fine in the body. Also, the arms were 3-4 inches too long for me. A shame, because it is a lovely jacket. Hope this is useful.
Very light mid layer. Looks and feels good even off bike. Insulation seems good but could not test in cool weather yet.
Size M for 180cm and 85 kg is perfectly fitting me.
I was lucky enough to have this jacket on my three week Norway trip.
Because of the fabric it is really easy to put on body armour Without pulling up your sleeves.
With only a T-shirt underneath and the Basilisk jacket on top (and forcefield ex-k body armour) it was warm enough in temperatures just under 10 degrees Celcius (50 degrees Fahrenheit).
Even used it (a lot) during the night in my sleeping bag. Again, because of the fabric you can freely move in a synthetic lined sleeping bag. (Note: don’t take a ‘summer sleeping bag’ to Norway during the summer...)
Easy packable (in it’s own pocket) when you are not using it.
And it also looks good during a walk trough a city (according to my girlfriend)
So, I am very pleased with it!
Sizing: a Large fits me well (189 cm, normal posture)