Premium underwear: the essential you don't see but you feel

Discover MTHOR Shop's Underwear selection, a collection designed for those who consider underwear a real piece of their wardrobe. Boxers, briefs, trunks, matching sets: we have curated the best models from the most iconic streetwear and premium lifestyle brands to offer you everyday comfort without compromising on style. Every piece in our underwear collection is authenticated and inspected by our expert team before shipping. Buying from MTHOR guarantees flawless fabric, a cut faithful to the original model, and factory-sealed packaging.

Underwear: from utilitarian basic to statement piece

For decades, underwear was thought of as purely functional: bought in packs, replaced when worn out, never seen. The turning point came in the 1980s when Calvin Klein, driven by photographer Bruce Weber, launched an advertising campaign that completely redefined the perception of men's underwear. The white logo-waistband boxer-brief became an object of desire, deliberately exposed above the jean line, and underwear shifted into the realm of fashion.

Since then the movement has only amplified. Tommy Hilfiger, Polo Ralph Lauren, Hugo Boss and Emporio Armani all entered the space with their own premium underwear lines. More recently SKIMS, launched in 2019 by Kim Kardashian, has redefined the underwear and shapewear market by combining inclusive nude tones, technical fabrics and pop-culture marketing. Sneaker and streetwear brands such as Nike, Adidas, Supreme and Stussy have launched their own logoed boxer lines, turning underwear into a cultural marker on par with a t-shirt.

The result: today choosing your underwear is no longer a trivial act. It is a decision that combines comfort, brand image and manufacturing quality. This is the trend that MTHOR's Underwear collection highlights.

Fabrics, cuts and technologies: what makes a great underwear

A quality underwear rests on three technical pillars: fabric, cut and waistband finish. On the fabric side, combed cotton remains the reference for breathability and softness, often enriched with a small percentage of elastane (3-5%) to ensure hold and freedom of movement. Premium brands like Calvin Klein and Tommy Hilfiger use stretch cotton specifically woven to keep its shape wash after wash. On the performance side, modal and micromodal (made from beech tree fibres) offer superior softness with a near-silk feel, while technical microfibres wick moisture continuously, ideal for sport and heat.

Then the cut: brief (short, maximum support), trunk (short mid-thigh boxer, the current best-seller), boxer-brief (longer cut above the knee, support and coverage), boxer-short (loose cut, loungewear vibe). Each cut has its logic: the brief for sport support, the trunk for modern daily wear, the boxer-brief for those who prefer coverage, the boxer-short for downtime at home.

Finally the logo waistband, the visual signature of every brand. Jacquard-woven at Calvin Klein, flat elastic at Tommy Hilfiger, double-layered at Polo, oversized at Versace. Three key benefits: durable comfort thanks to breathable fabric; tailored support for your activity; distinct style via the logoed jacquard waistband.

Iconic brands in the MTHOR Underwear collection

Our underwear selection brings together the essential references of the market. Calvin Klein Underwear, pioneer of the category since the 80s, remains the absolute reference with its trunks and boxer-briefs and its signature jacquard waistband. Tommy Hilfiger offers three-packs of boxers with the recognisable red-white-blue flag accents. Polo Ralph Lauren plays on its preppy American heritage with briefs and trunks featuring its embroidered Pony.

SKIMS, which has become in just a few years the most desirable underwear brand on the market, offers its famous seamless boxers in nude tones and its matching bra + brief sets. Hugo Boss and Emporio Armani embody premium European underwear with noble materials and a slim Italian cut. Streetwear and lifestyle brands keep up: Supreme, Stussy, BAPE, Palace regularly release very limited underwear drops that have become real collectibles. On the sports side, Nike, Adidas and Under Armour dominate the performance segment with their Pro lines and technical microfibres.

You will also find in the MTHOR Underwear collection a few pieces from luxury brands (Versace, Dolce & Gabbana, Balenciaga, Off-White, Vetements) that literally turn boxers into statement pieces, with XXL logo waistbands and premium fabrics.

Why buy your Underwear at MTHOR

MTHOR Shop specialises in authenticated products and applies the same level of rigor to fashion pieces as to sneakers. Each underwear in our collection goes through a thorough check by our expert team: we verify the original sealed packaging (branded box or blister), the inner woven label (composition, size, product code), the hologram or anti-counterfeit marking when the brand integrates one, the quality of stitching and fabric, and the logoed jacquard waistband — a brand signature that counterfeits rarely reproduce faithfully. Each order ships with a MTHOR seal, tangible proof that quality control has been performed and authenticity validated. Learn more about our authentication process.

We offer worldwide delivery in 2 to 8 days, signed for at your door, with real-time tracking via email and WhatsApp, pay in 4 interest-free via Klarna or Scalapay, and a France-based customer service available Monday to Friday from 9am to 6pm. If anything goes wrong, our 14-day return policy protects you — provided the packaging is intact and the seal not removed.

FAQ — Underwear at MTHOR

How to verify the authenticity of underwear bought at MTHOR?

Every piece sold by MTHOR has already been authenticated by our team before shipping. We verify the original sealed packaging, the inner woven label, the quality of the logoed jacquard waistband, stitching consistency and the fabric. For more details, see our detailed authentication process.

How to choose the right underwear size?

Underwear sizes generally follow your trouser size or an S/M/L/XL system based on waist circumference. Calvin Klein, Tommy Hilfiger and SKIMS run true to size in general, while Italian brands (Emporio Armani, Versace) tend to run a little small — size up if in doubt.

What box or packaging is delivered with my order?

Underwear is delivered in its original factory packaging: cardboard box for matching sets and three-packs, sealed blister for single pieces, fabric pouch for luxury brands. Our MTHOR seal is added on the outside of the parcel.

What is the delivery time?

We ship worldwide, signed at the door within 2 to 8 days. Real-time tracking via email and WhatsApp regardless of your destination.

Will I have to pay customs fees?

No, no customs fees are charged to you. MTHOR covers all customs duties and taxes, regardless of your destination in the world. The price shown on the site is the final price you pay.

Can I return my underwear if it doesn't suit me?

Yes, under strict hygiene-related conditions. You have 14 days from receipt to return your piece, provided the original packaging is intact, the seal not removed, and the piece never worn or tried on.

To go further

Complete your look with our Accessories selection. To learn everything about MTHOR product quality and authentication, see our detailed authentication process.