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Underwear

Men's underwear for daily wear. Soft TENCEL™ Modal in two lengths: 3-inch Booie Trunk and 6-inch Booie Boxer. Packs of one, three or six.

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  • 001 / Underwear

    Booie Boxer

  • Booie Boxer | 3-Pack
    3-Pack 6" Inseam | Tencel™ Modal

    Booie Boxer | 3-Pack

    Booie Boxer | 3-Pack

    ¥7,800
    Sale price  ¥7,800 Regular price  ¥9,000
    ¥2,600 each
  • Booie Boxer
    1-Pack 6" Inseam | Tencel™ Modal

    Booie Boxer

    Booie Boxer

    ¥3,000
    Sale price  ¥3,000 Regular price  ¥0
  • Booie Boxer | 6-Pack
    6-Pack Best value 6" Inseam | Tencel™ Modal

    Booie Boxer | 6-Pack

    Booie Boxer | 6-Pack

    ¥12,000
    Sale price  ¥12,000 Regular price  ¥18,000
    ¥2,000 each
  • 002 / Underwear

    Booie Trunk

  • Booie Trunk | 6-Pack
    6-Pack Best value 3" Inseam | Tencel™ Modal

    Booie Trunk | 6-Pack

    Booie Trunk | 6-Pack

    ¥12,000
    Sale price  ¥12,000 Regular price  ¥18,000
    ¥2,000 each
  • Booie Trunk | 3-Pack
    3-Pack 3" Inseam | Tencel™ Modal

    Booie Trunk | 3-Pack

    Booie Trunk | 3-Pack

    ¥7,800
    Sale price  ¥7,800 Regular price  ¥9,000
    ¥2,600 each
  • Booie Trunk
    1-Pack 3" Inseam | Tencel™ Modal

    Booie Trunk

    Booie Trunk

    ¥3,000
    Sale price  ¥3,000 Regular price  ¥0

Buying notes

How to choose men's underwear

The grid above is the line. This is the short version of what to look for: fabric, length, and whether the opening stays on the thigh.

What to look for

Start with fabric that does not turn into a wet towel, a leg long enough to sit on the thigh, and a waistband that lies flat. Size for the thigh as much as the waist. Too loose climbs; too tight also climbs.

Boxer brief vs trunk

A trunk is a shorter boxer brief. Choose the 3-inch Booie Trunk for less coverage, or the 6-inch Booie Boxer for more coverage through the thigh. Both use the same soft TENCEL™ Modal knit.

Why modal in humid weather

Cotton is fine until it is wet. Polyester dries fast and can feel slick after a full office day. Modal sits in the middle: a plant-based hand feel, less damp weight than cotton. That is why Booie is knitted from 60s TENCEL™ Modal.

Fit, inseam and sizing

The leg opening should hug the thigh without leaving a groove. If short underwear keeps riding up, consider a longer inseam. Start with the size chart on the product page, then check how the waistband and legs feel when you walk and sit.

Care

Cold wash, no fabric softener, low heat or a line. Softener and high heat are what flatten the stretch in the legs.

Shipping

Free shipping in Japan over ¥7,000

Shop by cut: Booie Trunk (3-inch) Booie Boxer (6-inch)

Questions

What is the difference between men's underwear styles?
Briefs leave the thigh bare. Trunks are short boxer briefs. Boxer briefs add a few inches of leg so the cloth can sit still and keep thighs from rubbing. Loose boxers move more air and also more fabric.
Is modal underwear better for Hong Kong weather?
For commuting and office days, usually yes. Modal does not hold as much damp weight as cotton. It is not a substitute for a running brief.
How should I size boxer briefs?
Measure your waist as the product's size chart instructs and start with its recommended size. When you walk and sit, the waistband should lie flat and the leg opening should hug without digging in. If the fabric bunches or leaves marks, check the size and cut against the chart rather than automatically sizing up or down.
How do I wash modal underwear?
Machine wash cold with similar colours. Skip bleach and fabric softener. Tumble dry low or line dry.
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