Obviously

PrimeMan Boxer Brief 9 inch Leg

$36.00

Obviously's longest cut - a 9 inch leg that won't ride up, in ultra-soft MicroModal with the AnatoMax anatomical pouch for natural support. Sizes S-3XL.

Color Black
Size
 
Quantity
Free shipping U.S. orders $50+
2–5 day delivery business days
Discreet plain box & label
Description

The PrimeMan Boxer Brief 9 inch Leg is Obviously's longest cut — and the one to reach for when you want full thigh coverage that stays exactly where you put it. The 9 inch leg sits low enough to disappear under trousers, eliminating ride-up on long days, long flights and long walks.

The AnatoMax pouch

Everything about this brief is built around the AnatoMax anatomical pouch. Rather than pressing everything flat against your body the way conventional underwear does, the pouch is constructed with a three-dimensional shape that keeps things naturally separated and supported. The result is less friction, less heat, and no reaching into your pocket to readjust halfway through the day. Once you've worn a properly built pouch, flat-front underwear feels like a compromise.

Fabric & construction

Cut from an ultra-soft MicroModal and Lycra blend with four-way stretch, the fabric moves with you instead of fighting you — breathable, moisture-wicking, and noticeably lighter than cotton. The premium soft-back logo waistband sits flat without pinching or leaving marks, and the care label is printed directly onto the fabric, so there's no tag scratching the small of your back.

The fit

Trim through the seat and thigh with a longer leg that won't roll. If you're between sizes, size down for a closer athletic fit or stay true to size for everyday comfort. Available in sizes Small through XXX-Large in core colours.

Details

  • AnatoMax anatomical pouch for natural separation and support
  • MicroModal / Lycra blend with four-way stretch
  • 9 inch inseam — full thigh coverage, no ride-up
  • Premium soft-back logo waistband
  • Breathable, moisture-wicking and odour-resistant
  • Printed care label — no itchy tags
  • Machine wash cold, tumble dry low
Fabric & care

Material: 90% Lenzing MicroModal / 10% Lycra

Care Instructions

  • Cold, gentle machine wash at 30°C (86°F) or below
  • Avoid bleach and dry cleaning
  • Low tumble dry setting
  • Cool iron only if needed
  • Lights and darks can be washed together — our colors are colorfast, though fabric may still absorb dye that bleeds from other garments
  • Avoid warm or hot wash/tumble dry cycles to preserve elasticity and shape; damage from improper care is not covered under our guarantee
Size guide

Men's Underwear Size Guide

  • Small — Waist 30"–32" (75–80 cm)
  • Medium — Waist 33"–36" (81–90 cm)
  • Large — Waist 37"–40" (91–100 cm)
  • X-Large — Waist 41"–44" (101–110 cm)
  • XX-Large — Waist 45"–48" (111–120 cm)
  • XXX-Large — Waist 49"–52" (121–130 cm)

How to measure: measure around your natural waistline where your underwear normally sits, keeping the tape flat against the skin but not tight.

Shipping & returns

Free U.S. shipping over $50 · Delivered in 2–5 business days Orders under $50 ship for a $7.95 flat rate. Every order ships in plain, discreet packaging — no logos, no product names.

Unworn items in their original packaging with tags can be returned within 30 days for a full refund. Sale items can’t be refunded, and return postage is paid by the buyer. Full returns policy

Pouch
Anatomical
Fabric
90% Lenzing MicroModal / 10% Lycra
Sizes
Small – XXX-Large
Care
Machine washable