4.5
4.5
4.5

4.5" Trunks

4.7 star rating 462 Reviews
$32
Color MicroModal Black Rainbow Stripe

It's all in the hips

For the best fit, pick your size based on your hip measurement.
Body measurement in inches

Size Waist Hips
XS 26-27.5" 33-34"
S 28-29.5" 35-37"
M 30-31.5" 38-40"
L 32.5-34" 41-43"
XL 35-37.5" 44.5-46.5"
2X 38.5-42" 48-50"
3X 43-45" 51.5-53.5"
4X 46-48" 55-56"

For more detailed information, please see our Fit Guide page.

How to measure your hips

Stand on a level surface, feet together without shoes.
Measure around the fullest part of your hips and bottom - this is usually 7-9" below your natural waistline.
Keep the tape measure parallel to the floor, and don't pull too tight.

Size chart
Size

Using Internet Explorer will cause problems with your order. Please use a supported browser like Chrome, Firefox, Microsoft Edge, or Safari to shop TomboyX.

Wear with prismatic pride. We took a classic and made it an icon with the first truly gender-neutral boxer brief. A classic silhouette in luxurious supersoft, breathable, and featherlight MicroModal. Our smooth-fitting design that never binds or rides up. Made to stretch and move with any body.

  • Fit-tested on all body types, sizes XS-4X
  • Signature stay-put silky soft X= Patch waistband
  • Sustainably sourced from renewable beechwood trees
  • Mid rise, 4.5" inseam
  • 95% MicroModal, 5% spandex
  • Highly stretchy to accommodate different body types
  • Smooth, durable flatlock seams won’t irritate or chafe
  • Machine wash cold, tumble dry low
    Stock Up & Save! Buy 3+ of any undies and/or bras & get 10% off. Buy 5+ and get 15% off.
    hand

    Living Wage factories

    Ethically produced in women-owned factories that pay living wages.

    ruler

    fit-tested for every body

    Obsessively fit-tested on real people, sizes XS-4X.

    heart

    Love at first wear

    If you don't love them, your first pair is on us.

    globe

    eco-friendly process

    Sustainably harvested materials and earth-conscious production.

    Fabrics & Technology

    Cotton

    Our classic soft jersey knit holds its shape after many wear and care cycles.

    Shop Cotton

    MicroModal

    The luxurious companion to cotton. Supersoft, breathable and stretches to meet you.

    Shop Micromodal

    Traveler

    Quick-drying, durable and ultralight performance fabric. Anti-bacterial and anti-microbial.

    Shop Traveler

    First Line Leakproof

    Your first line of defense — our classic cotton armed with leak protection for light period days and incontinence.

    Shop First Line