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Ministry of Supply Ministry of Supply
Size Guide: Men's Travel Merino Boxer Brief
Size XS S M L XL XXL
Waist (Body) 28-29 30-31 32-33 34-35 36-37 38-40
Size XS S M L XL XXL
Waist (Body) 71-74 76-79 81-84 86-89 91-94 97-102
CHF 51.02
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(514)
Color
Size Size Guide



Business-Class Merino
Multi-Day Odor Control
Adapts to Climates
One-Bag Travel Ready

Engineer's Notes
  • Superfine Australian Merino Wool (~16.5 micron): Ultra-fine fibers provide soft next-to-skin comfort with natural odor resistance and temperature regulation.
  • 76% Merino / 19% Nylon / 5% Elastane Blend: Combines merino’s natural performance with nylon durability and elastane stretch and recovery.
  • 170gsm Performance Knit: Lightweight fabric optimized for breathable, close-to-skin comfort across long travel days.
  • Machine Washable Merino: Engineered wool knit designed for easy care on the wool cycle with mild detergent.
  • Soft Waistband: Knit waistband designed for secure hold without pressure or rolling.
  • Drip-Protective Double-Layer Pouch: Two-layer front panel provides absorption, structure, support, and comfort.
  • Shaped Rear Panel: Contoured back construction improves fit and stability during movement.
  • Made in Shenzhen, China by Lever Style

Fit Tip
  • Fits true to size
  • We recommend purchasing based on your pant size
  • See size chart for details.
Care
  • Machine Washable Merino: Machine wash cold. Tumble dry low. Hang dry recommended.
  • High heat may cause shrinkage.

Variant ID: 42196579483723

SKU: MM131NN3NU

Barcode: 608870956412

Men's Travel Merino Boxer Brief

Navy / XS

Superfine Merino Softness

Made from 16.5 micron Australian merino wool, with fibers that are about 3.5× more flexible than standard 22.5 micron wool. The ultra-fine diameter creates a smoother, softer feel against skin with none of the scratchiness of traditional wool.

Best-in-Class Odor Control

Merino naturally resists odor, making it ideal for the rigors of long-haul travel and multi-day wear. Easy to refresh between trips, the fabric is also sink washable when you need to pack lighter and go longer between laundry cycles.

Natural Thermoregulation

Merino’s hygroscopic fibers absorb and release moisture vapor, helping manage heat and humidity simultaneously. The result is a natural buffer that keeps you comfortable across changing temperatures and long days in motion.

Triple-Blend Performance

A technical blend combines merino for odor resistance, nylon for moisture management and durability, and elastane for stretch and recovery. The result is breathable performance with a flexible, no-sag fit that keeps its shape all day.

Drip & Sweat Protective Pouch

A absorptive and anti-odor, two-layer front panel provides support while helping manage any moisture for added comfort and confidence.

Ministry of Supply° vs Them

Feature

Lululemon

Brooks Brothers

Travel Friendly?

Packable, wrinkle-resistant, carry-on ready

Only for the hotel gym

Non packable & uncomfortable

In-Flight Comfort?

4-way stretch, breathable, soft

Excellent stretch and comfort

Restrictive, traditional weaves

Wrinkle Resistance?

Flight-to-meeting ready

Wrinkle resistant

Requires hotel iron

Low Maintenance?

Machine & sink washable

Machine washable

Dry clean only

Durability?

Lab-tested for abrasion, pilling, recovery

Not lab-tested, may lose structure

Not lab-tested

Sustainability?

Recycled & bio-based fibers, emissions tracked

Some eco materials, limited reporting

No sustainability transparency

Style Sharpness?

Tailored, polished, professional silhouette

Sport-casual aesthetic, not meeting-ready

No Emissions Classic, boardroom-appropriate

Frequently Asked Questions

What makes your products better than other brands?

Our products are made from a variety of innovative, high-performance materials built to wick moisture, resist wrinkles and stretch in all the right places. Every item is designed to provide next-level comfort, flexibility, and durability, without compromising a sharp, work-ready aesthetic. You can learn more about specific fabric platforms on our Fabric Technology page

Are your pieces machine washable?

“Low-maintenance apparel” is our mantra - all of our garments are machine washable, and most can be tumble dried on low. We do recommend hang-drying suit jackets and laying our sweaters flat to air dry. Always check the care label on each item for specific instructions.

What’s your shipping and returns policy?

We accept returns or exchanges on unworn items in their original condition (unwashed, undamaged, tags attached) within 30 days of purchase. A $7 return shipping fee applies if you use our pre-paid label, or you can provide your own to waive the fee.

Prefer store credit? Eligible items can be exchanged for store credit up to 30 days after purchase. For discounted products terms apply.

Items marked Final Sale or Exchange Only are not eligible for return or store credit.

Please note: Once your return has been dropped off or shipped, we’re unable to make changes to the request. For questions or assistance, contact us at [email protected].

Learn more here.

Where is your clothing manufactured?

Our clothing is made in a variety of locations around the world, including domestically and in Asia. We carefully select manufacturing partners who share our commitment to high-quality craftsmanship, ethical labor practices, and sustainability. All of our production undergoes third-party inspection. Learn more about our factories.

What are your sustainability practices?

We take great pride in our sustainability initiatives - using durable, bio-based and recycled materials, utilizing zero-waste computerized knitting, and incorporating eco-friendly fabrics into many of our designs. We are constantly improving our processes to minimize environmental impact, from garment creation to reaching your doorstep. Learn more here.

Can you help me find my size?

We recommend using the size guides and fit tips available on each product page to find your perfect fit. You can also use the TrueFit widget to determine your recommended fit based on height, weight and body type. Our clothing is designed with a modern fit and generous stretch, so keep this in mind while shopping.

Do you test your products? What tests do you use?

At Ministry of Supply, we rigorously test our products to ensure best-in-class performance, durability and comfort - to that end, each product we make undergoes 50+ ASTM/AATCC tests, including:

  • Moisture-Wicking Tests to ensure fabrics effectively pull sweat away from the skin, keeping you dry and comfortable throughout the day.

  • Stretch and Recovery Tests to ensure pieces stretch comfortably and return to their original shape without sagging or losing form.

  • Temperature Regulation Testing to keep you cooler in the heat, and warm in cooler conditions.

  • Odor Control Tests to ensure that the fabrics maintain freshness even after prolonged wear.

  • Wash and Wear Durability Tests to make sure your clothes will withstand daily use and retain their sharp aesthetic for years to come.

Climate Neutral Certified

We’ve been carbon neutral from day zero, and we’re investing in projects to minimize our footprint.

Engineered to Perform

Designed, built and tested to perform. We guarantee all of our products for life.

Hassle-Free Returns & Exchanges

Free Returns & Exchanges

Return items hassle-free in the first 30 days, or exchange within the first 100 (Final Sale excluded).