The Aviator – Boxer kalsonger i lyocell
‣ Material
Tillverkad av 95 % premiumcertifierad lyocell – ett tyg utvunnet från hållbart brukad skog – för att ge en enastående mjuk känsla, fantastisk andningsförmåga och naturligt fukttransporterande egenskaper som håller dig fräsch, bekväm och självsäker hela dagen.
Att sitta ner i många timmar kräver frihet där du vill ha det, och därför har vi lagt till 5 % elastan för att ge dig den perfekta stretchen.
‣ Produktvård
För långvarig hållbarhet och minskad miljöpåverkan rekommenderar vi tvätt i en svalare temperatur (40 ℃) med ett miljöcertifierat tvättmedel. Hoppa över torktumlaren – lufttorkning hjälper till att bevara tygets kvalitet och mjukhet över tid.
Extra tips: För maximalt skydd och förlängd livslängd rekommenderar vi att du använder tvättpåse. Den minskar friktionen, bevarar fibrernas kvalitet och håller dina kalsonger i toppskick – tvätt efter tvätt.
Välj alternativ
Kundrecensioner
"Incredibly comfortable. Big plus that there’s no care label. They don’t ride up like most other underwear I’ve tried. The waistband is slightly slimmer than I’m used to, but not in a negative way.
I’ve walked, flown, stood, and even trained in them — 5 out of 5!"
- Douglas, First Officer, Sweden
"First flight tested on Madeira — known as one of the more challenging airports. I can happily report it went smoothly, so if they can handle Madeira, they can handle anything. Super comfortable all day."
- Fredrik, Airline Captain, Sweden
"The quality feels really good — you can tell right away. I’m looking forward to trying them during work in the cockpit. Great job!"
- Per Munk Gellert, First Officer, Denmark
“My free sample boxer short from 1st LAYERS performed extremely well on my 8-hour flight to New York — no itching, no sweating, just perfect.”
- Espen Poulsen, Captain and Instructor
I’m super satisfied with the boxers — the fabric, the fit, and especially the tag-free design.
As a former athlete who played football at the highest level, I can strongly recommend them for athletes as well.
I’ll definitely be buying more. Great job on the brand!
- Richard Nilsen, Flight Instructor & Former Professional Football Player, Norway
our fabric
Lyocell
Lyocell is a fiber derived from sustainably sourced wood, where natural cellulose is transformed into a fabric known for its silky smoothness, exceptional breathability, and moisture-regulating properties — born from the precision of nature itself.
- Feels like nothing. Changes everything.
Aviator collection
Designed with pilots
We asked high performing individuals who sit for hours, moves with purpose, and doesn’t tolerate distractions, what they want from their first layers.
They shared their pain points and frustrations from using well known brands around the globe.
And we listened...
what's next?
We’re building a system of intelligent base layers.
Future drops will include new cuts, layers, and materials — always guided by feedback from our community.
Riktigt nöjd! Otroligt bekväma, sitter perfekt hela dagen och känns verkligen premium. Märks att det är kvalitet i både material och passform. Kommer definitivt köpa fler!
The Aviator - Lyocell Boxer Brief is easily the most comfortable underwear I’ve ever owned. The fabric is silky, breathable, and stays cool all day. The fit is perfect, supportive without being tight and the waistband never rolls or digs in. After several washes, they still feel brand new. Recommended!
They fit like a glove. Really good breathability and smooth fabric. I forget I have them on!
My free sample boxer short from 1st LAYERS performed extremely well on my 8-hour flight to New York — no itching, no sweating, just perfect.
Great fit!
Best fit ever!
Absolut dom skönaste kalsongerna jag testat! Väldigt proffsig och snabb leverans!
Great product, fantastic materials, impecable design. Truly recomended!
It really keeps you cool and supports nicely. Details and everything were great!
Really nice underwear, as a Commercial pilot that sometime spends more than 12 hrs in the seat, this was the most and best ventilated underwear I have tried so far.
Very comfortable and good quality product.
Nice quality, good there no label that itches. And good longer length on the inside of the leg - could even be a cm longer, to make sure they don’t crawl up!
However, I don’t like the packing. It’s a lot of plastic for just one boxer.
Could you not make the packing from (coated/treated) paper material?
Very comfortable and very nice quality!
Really great product, comfortable to wear and didn’t even notice having it on on the legs, where generally boxers often come up.
The material is really high quality!
Recommended and worth it, especially on long days at work.
Really good underwear. Comfortable with very nice quality and is very versatile as I use them both for training and work. 10/10 would recommend👍🏼
Toppen!
These boxer sit and fit very well. Probably the most comfortable boxers I have ever used. You can barely feel them and even if they curl up they are still comfy.
Strongly recommend.
Excellent! 👌🏼
Very pleased with the comfortability. Premium feeling and very hygienic due to its comfortable and ”breathing” material, even though I am sitting down a lot during my working sessions it’s still very hygienic.
Light comfortable and stretches well!
Excellent fit and very comfortable to wear.
The boxers aren't just comfy for work and travel; they're also fantastic for sports! They're like the secret weapon in your wardrobe, keeping you cozy while you’re on the move.
Love the fabric! Great quality product
I had the chance to try out these Boxer and I really like the comfort and shape. The material is smooth and fits the body very well. I can definitely recommend these to anyone and specially under a uniform.
Lasse / Business Jet Pilot
Comfortable experience. The underwear felt very light and breathable. High quality product!
Första intrycket är väldigt bra. Snyggt paketerat med en proffsig layout.
Jag är väldigt nöjd. Skön passform. Har använt långa arbetsdagar utan att en enda gång besväras av kalsongerna. Behövde inte ägna en tanke åt dem. Vilket i min värld är ett toppbetyg för underkläder.
Bra produkt!
Im extremely particular when it comes to underwear. Especially being an airline pilot and sitting down for hours on end. The product that 1st layer has created with the Aviator boxer is absolutely amazing. I’ve tried a lot of different boxers over the years but these do what they promise - and they feel great. Top notch work by the boys behind 1st layer. I’ll be ordering more boxers 🤘🏻
A pleasure to wear these in the cockpit - a strong recommendation from me, well done!
Comfortabale and good looking!
They comfortable and was nice to have on a long working day.
Great service and an amazing product!
Super sköna med perfekt passform