Transform every day from the moment you put it on
One gesture in the morning, and your whole relationship with the day changes. Here's what actually changes.
No more 50 adjustments a day
The anatomical pouch keeps everything in place without squeezing. Finally stop those awkward adjustments at the office, in the car, and during meetings.
Stay cool even in the heat
Mulberry silk naturally regulates body temperature. Up to 3°C cooler than a cotton boxer, even under a suit in summer.

Say goodbye to irritation
Flat seams and a silky feel eliminate any chafing. Ideal for sensitive skin or long days on your feet.
A quiet signal she picks up on
A man who takes care of the invisible details carries himself differently. She notices before you do, even if she never says it.
This week's reviews
Excellent 4.8 / 5
Marco Ferretti
Honestly speechless. 11 hours straight, zero adjustments, zero heat. My old cotton boxers went straight in the trash the next day.
Luca Bernardini
I bought them because my wife was tired of watching me fidget on the couch. She was right. This week I'm ordering the other three colors.
Matteo Colombo
Perfect for long days at the office.
Roberto Damiani
I've tried several high-end brands over the past few years, and almost always ended up disappointed after a few washes. These still hold their shape and softness after two months of daily wear. The waistband doesn't give at all, which is genuinely rare. I'd recommend them without hesitation to colleagues who travel a lot. A completely different league.
Andrea Fontana
Really nice to wear, incredibly soft. The only thing I'd do differently is go up a size — they fit a bit snug on me...
Davide Marchetti
Two weeks traveling around Europe by train for work, zero discomfort. First time in my life a pair of boxers actually delivers on what it promises. My wife noticed I was moving differently — not sure if it's related, but anyway 😄
Why the HELVIA SWISS boxer?
HELVIA
Cotton boxers
Frequently asked questions
Is silk really more comfortable than cotton?
Yes, and you feel the difference right away. Mulberry silk glides over your skin without friction, naturally regulates temperature, and stays up to 3°C cooler than cotton.
You’ll notice it within the first hour you wear it.
How do I choose my size?
Choose your size based on your waist circumference, measured at navel height without pulling the tape tight.
M (76-86 cm), L (86-96 cm), XL (96-106 cm), 2XL (106-116 cm), 3XL (116-126 cm). If you’re between two sizes, go up for maximum comfort.
How do I care for the silk boxer briefs?
Machine wash at 30°C on a delicate cycle, preferably inside a laundry bag.
No tumble dryer, no fabric softener, no bleach. Dry flat or on a hanger. With this care, the boxer briefs keep their silky feel for years.
Are they suitable for sensitive skin?
Absolutely. Mulberry silk is naturally hypoallergenic and antibacterial.
The seams are flat to prevent any irritation—ideal if regular boxer briefs leave you red or sore.
What if they aren’t the most comfortable I’ve ever worn?
Satisfaction guaranteed or your money back within 90 days—no explanations needed.
Wear them for a full day. If they aren’t the most comfortable boxer briefs you’ve ever worn, contact us and we’ll refund you in full.
What are the delivery times?
Ships within 24–48 hours from Switzerland, with delivery in 5–7 business days.
Free shipping on orders of CHF 60 or more. You’ll receive a tracking number by email as soon as your parcel is on its way.
Ships within 24–48 hours, arrives in 5–7 business days.
90 days to try them, full refund.
TWINT, credit card, and PayPal accepted.
A Switzerland-based team at your service.

