Grundies
Flagship Boxer Brief
4-Way Stretch Moisture-Wicking Anti-Microbial
Flagship Product

The Boxer Brief
That Changed Everything.

Ball Cleavage Engineering™ meets activewear-grade performance. The lift and separation of a $40 brand — at $24.99. With a 1-year durability guarantee because we actually back what we make.

Engineered, not just sewn. Zero adjustment. All day.
$24.99

Free shipping • 1-year durability guarantee • No questions asked returns

Subscribe & save 25%: $18.99/pair, delivered monthly. Cancel anytime.

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1-Year Durability Guarantee
They fail, we replace. No fine print.
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Stock your drawer right.
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Ball Cleavage Engineering™

The push-up bra for men. Proprietary pouch that lifts, separates, and presents. Not the flat, restrictive "hammock" you've tried before — this one actually moves with you.

🛡️

1-Year Durability Guarantee

Tired of underwear that unravels in 2 months? Same. If your Grundies fail within a year, we replace them free. That's how confident we are.

Activewear-Grade Fabric

92% nylon, 8% spandex. Four-way stretch, moisture-wicking, anti-microbial. The same material performance brands charge $40 for. Ours is $24.99.

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Temperature Regulation

Mesh ventilation zones where heat builds. Your boys stay cool when things heat up. No more overheating in "premium" fabrics that trap moisture.

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Flatlock Seams That Last

Zero chafe, zero ride-up. Every seam is flat-stitched — not the cheap stitching that fails at the pouch like other brands. These are built to survive the wash cycle.

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6" Inseam, Perfect Fit

Long enough to prevent thigh friction, short enough to never peek below your shorts. Wide elastic waistband that grips without the stranglehold.

Product Specs
Material
92% Nylon / 8% Spandex
Inseam
6 inches
Waistband
Wide elastic, logo-embossed
Pouch
Contoured 3D, forward-facing
Care
Machine wash cold, tumble dry low
Made In
Knoxville, Tennessee
Color
Midnight Black
Sizes
S / M / L / XL
Frequently Asked Questions

Three things: Ball Cleavage Engineering™ (a proprietary pouch that actually lifts and separates instead of just existing), premium 92% nylon activewear-grade fabric, and a 1-year durability guarantee. SAXX charges $40, Shinesty lasts 2 months. We're $24.99 and built to last 12.

It's exactly what it sounds like — and yes, we're proud of it. Our 3D contoured pouch lifts, separates, and presents. Think of it as the push-up bra for men. Other brands hide the engineering behind vague words like "hammock" or "pouch zone." We just say what it does.

30-day no-questions-asked returns for a full refund. If they fall apart within a year, we replace them free under our 1-year durability guarantee. Doesn't fit right, doesn't feel right, just changed your mind — we'll sort it. No fine print, no hassle.

At least a year — guaranteed. Competitors' budget pairs fail in 2 months. Their premium pairs fail in 4. We back ours for 12 months, period. We tested 47 fabric blends to get here. The flatlock seams and activewear nylon are engineered to survive the wash cycle, not just the store shelf.

Subscribe and get a fresh pair delivered monthly at $18.99 (25% off the $24.99 single price). Cancel or pause anytime. No commitments, no tricks. Your drawer stays stocked, your wallet stays happy.

Measure your waist at the natural waistline (just above the hip bones). S = 28-30", M = 32-34", L = 36-38", XL = 40-42". When in doubt, size up — the 4-way stretch accommodates.

100+
men have already upgraded their drawer.

"We tested 47 fabric blends before we found the one. Most brands pick a fabric and move on. We didn't stop until we found something we'd actually wear every day."

— Grundies Team

Get 10% Off Your First Pair

Join the list. First drop ships soon. Subscribers get early access + 10% off.

Your underwear should feel like a hug, not a stranglehold.

$24.99 single pair. $18.99/pair when you subscribe and save 25%. Free shipping. 1-year guarantee.

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