Onishi Trunk — Mustard | Men's Modal Trunk Underwear
Onishi Trunk — Mustard | Men's Modal Trunk Underwear
Onishi Trunk — Mustard | Men's Modal Trunk Underwear

Trunk — Mustard | Men's Modal Trunk Underwear

99.9% positive · 1,000+ ratings on eBay
  • Low stock - 6 items left
  • Inventory on the way
Regular price $38.00 Sale price$23.00 Save 39%
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Shipping calculated at checkout.

Size chart
Waist(in)
BRAND XS SMALL MEDIUM LARGE X-LARGE XX-LARGE
Bike Athletic 28-29 30-31 32-33 34-36 37-39 40-42
Calvin Klein 24-26 28-30 32-34 36-38 40-42 44-46
ExOfficio -- 30 32-34 36-38 40-42 44-46
Mack Weldon -- 28-30 31-34 34-36 36-40 42-46
PSD Underwear 24-26 28-30 32-34 36-38 40-42 44-48
Rhone 27-29 29-30 31-33 34-36 37-39 40-44
Stance 28-30 30-32 32-34 34-36 36-38 38-40
Tommy Hilfiger 30-32 32-34 34-36 36-38 38-40 40-42

Just the Right Amount of Everything.

Onishi Trunk — Mustard · Men's Modal Low-Waist Trunk · Made in Bali

🎉 On Sale — Save 39% | Was $38.00, Now $23.00 · Only 5 left in stock

The Onishi Trunk — comfort without compromise, coverage without bulk. Built from ultra-soft 90% Modal and 10% Spandex for just the right amount of stretch, coverage, and feel from the first wear.

In Mustard, the warm golden-yellow is earthy, confident, and versatile — stands out in the drawer, disappears seamlessly under anything you wear.

Minimal by design. Maximum by feel.

The low-waist silhouette sits clean on the hip with a trunk-length leg — fully supported, never restricted. The covered elastic waistband eliminates exposed rubber and pressure points. The screen-printed label eliminates the scratchy tag. Non-branded — no logos, no distractions. Handcrafted in Bali, Indonesia.

Key features

  • 90% Modal / 10% Spandex — ultra-soft, breathable, shape-retaining
  • Low-waist silhouette — trunk-length leg, clean modern cut
  • Covered elastic waistband — no exposed rubber, no digging
  • Screen-printed label — no tags, no irritation
  • Non-branded — minimal, logo-free design
  • Made in Bali, Indonesia — handcrafted quality
  • Mustard colorway — warm golden-yellow, earthy and versatile

Brand

Onishi

Style

Trunk — Low Waist

Color

Mustard

Sizes

XS through XL

Fabric

90% Modal / 10% Spandex

Price

$23.00 (was $38.00)

Label

Screen-printed, non-branded

Made in

Bali, Indonesia

Low stock — only 5 left. Free standard shipping on every order.

Model is protected under applicable copyrights trade marks and other proprietary including without limitation intellectual property rights and international treaties.

Shipping Policy

  • Local Warehouse: orders ship the next business day.
  • Remote Warehouses: processing varies by location — most ship within 2–3 business days, with a range of next-day up to 5 business days.
  • Once your order ships, you'll get a tracking number by email.
  • Orders of $60 or more shipping within the U.S. ship free.
  • Estimated transit: 2–5 business days (USPS Ground Advantage) for U.S. orders.
  • International orders: 5–14 business days via DHL eCommerce, depending on destination and customs processing.
  • If your order hasn't arrived within 2 weeks of the estimated delivery window, contact us and we'll sort out a replacement or refund.

Questions? Reach us anytime at byron@byronsbritches.com.

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