HORIZON BLUE
Jacob Amsterdam
Obrechtstraat 19
1071 KD Amsterdam
The Netherlands
Magasine
Sint Janstraat 2-4
1251 LA Laren
The Netherlands
John Crocket
Friesenstraße 50
50670 Cologne
Germany
Le Marais Deux
Maastrichter Heidenstraat 6
6211 HV Maastricht
The Netherlands
Boutique aan de Dam
Dam 31
4331 GE Middelburg
The Netherlands
Certified organic cotton (OCS)
We support sustainable cotton farming (BCI)
Description
Wide boxers, done properly.
Designed in Amsterdam, Son of John boxers are crafted from premium two-ply 100s yarn, spun from 100% cotton. The result is a fabric that feels exceptionally soft from day one, yet is built to last—wear after wear, wash after wash.
The wide fit is intentional: breathable, unrestricted, and comfortable in every situation. No pinching, no riding up, no compromises. Even the details are considered—our signature label sits on the outside only, so nothing ever irritates your skin.
Each pair arrives in a matching Son of John cotton bag, made from the same premium fabric and completely plastic-free. Thoughtful, reusable, and designed to last—just like the boxers inside.
This is everyday underwear, elevated.
Made once. Worn for years.
- Designed in Amsterdam.
- Two-ply 100s yarn, 100% cotton, softer than your softest dreams.
- 1-year worldwide warranty.
- No tag where it itches.
- Complementary SoJ label on the back of the boxer.
- Comes in matching SoJ bag made from 100% cotton, 0% plastic.
- Quality that might just outlive you.
Free shipping on orders of €100,- or more.
We ship our boxershorts from an overseas warehouse to customers worldwide. All orders are processed within 1-3 business days, and you will receive a tracking number via email once your order has shipped. After processing, please allow additional time for delivery based on your location.
See the shipping policy for more information.
why Son of John boxers are simply the best.
premium shirting fabric
100% organic cotton
Why this fabric makes the difference
and why you will feel the difference.
Lightweight and breathable
Thin fabric. Stays cool. Dries faster.
Longer lifespan
1-year worldwide warranty.
Refined and silky touch
2/100s shirting fabric vs standard 1/40s.
The other features.
Backed by Research
+25% sperm concentration
+17% total sperm count
- Lower levels of follicle-stimulating hormone (a marker associated with impaired sperm production)
Study: Harvard T.H. Chan School of Public Health (2018)
No itchy tag
We have removed all annoying inside tags, ensuring ultimate comfort without the itch.
Unique Design
Each boxershort features a thoughtfully chosen label, perfectly complementing its design. Besides this, your boxers come protected in a matching bag. This bag is reusable and made from 0% plastic.
Let customers speak for us.
Ben Alberduin
Really really comfortable boxers, you forget you have them on. Despite being loose boxers they have a really nice cut, and they actually don't annoy you and bunch up like others. Fabric feels really soft and is getting softer after every wash. Colors and fit look classy and masculine but with a 90's vibe.
Alexander Sarmabozhov
The boxer shorts of "Son of John" really are what they are advertised to be — comfortable and stylish. During the day, I keep forgetting I am wearing them and am not actually naked 😅
Pepijn vd Berg
It feels like you're not even wearing underwear, amazing feeling
Jan Sebastian Tomsa
I ordered the blue striped boxers, which I had been searching for for a very long time. They fit perfectly, the fabric feels great, and they look fantastic — even when the waistband is visible above your trousers.
Cas Steenmeijer
Top quality, replaced my old underwear and use SoJ as my daily.
Ivan Nikolov
I've only got them a week and it feels like it's been months, very comfy, breathable. Best boxers ever. The price is a bit much but I don't think I'll have to buy boxers ever again.
Roberto Casassa
High quality. Great comfort and materials. A new staple in my closet. Thanks SoJ
D HS
Ordered from the UK and the product arrived on time in very smart packaging. The boxers themselves are excellent — high quality fabric, look superb, and feel great.
Tom Provost
Perfect fit to size, excellent fabric and very good support if needed. I can only recommend!
MP
The quality of the underwear is exceptional, and their customer service is really great. Lovely owners who want to make sure their customers are satisfied :) Success!
Rafał
Material and manufacturing top class, nothing to be ashamed of compared to well-known brands. I will definitely buy some more.
hadriames
Your boxer briefs are beautiful and comfortable. I'm delighted with their soft material, simplicity, and fit. I also wear briefs often, so I don't wear boxer briefs exclusively every day, but the way you managed to produce them makes me want to wear them more often.
Pietro Montanarini
I ordered both boxers and socks and I have to say they are both excellent products. Quality is very good and the fit is amazing. Will definitely buy more.
Juan Carlos Carretero
The service provided by the team has been totally personalised and kind! The boxers are incredible!
Levi
Amazing product, great quality, super comfortable! And the team is very friendly and professional.
Sebastiaan Donker Duyvis
Boxers are excellent quality! Love the patterns and color combinations.
NUNO
Great quality, great look, marvelous packaging, very comfortable to use!
nigel husband
I wear these boxers for bed — they are so comfortable. Absolutely love them.
Arjan Ham
Boxershorts are of great quality and look great. Quickly delivered. The socks aren't my thing but would rather have an extra discount 😉
Alexander Wie
Great boxershorts! Fit good, love the tag on the back. Keep it up!
About Us
Founded by three friends from Amsterdam with the mission to introduce the comfort of wide boxershorts to the world.
Frequently asked questions
Yes, we ship to most countries worldwide. If your location isn’t listed at checkout, drop us a message through the contact page - we’re happy to help. Please note that shipping times and fees may vary depending on where you live.
Our boxershorts are made from 100% cotton, similar to premium dress shirts. The cotton used is one of the best on the markets, making them comfortable and everlasting. Besides this, they are made under fair labor conditions.
It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.
Yes, they are. There has been much research and wide boxers have been proven to increase sperm count. You can find one of the supporting Harvard studies here.
