Free Shipping When You Buy 3 or more

Free Shipping When You Buy 3 or more


Crafted from Sea Island Cotton; the world's most precious cotton and loved by the British royal family.

BORDERIES Boxer briefs are made from 100% American Sea Island Cotton with ultra-long fibers for a soft as cashmere feel and silky luster. 

These weightless and breathable knit shorts are ideal for everyday wear, regardless of whether you prefer trunks or boxer briefs.

*Made with pride in Japan

Size Guide

Model wears a M (height 6'/ 182cm, weight 75kg)
Model wears a L (height 6'3"/ 190cm, weight 85kg)

*Our size chart follows Japanese standard sizing.

Height (cm) 155-165 165-175 175-190 FREE
Weight (kg) 50-65 55-75 70-90 85-110
Waist (cm) 64-74 74-84 84-94 94-104
Hip (cm) 78-90 84-96 90-102 96-108

About Out of Stock Items

- Items are expected to be back in stock at the beginning of June, 2021.

- Items may be back in stock earlier or later than expected depending on factory or traffic conditions.


Free Shipping When You Buy 3 or more
Free Size Exchanges

67 items left

  • Lightweight knit shorts

    Underwear that wraps your body in softness and breathable comfort, these knit shorts never lose their shape, even when worn by skinny bottoms.

  • American Sea Island Cotton

    American Sea Island Cotton, known worldwide as the “Prince of Cotton”, consists of extra-long cotton fibers and originates directly and completely from the Sea Island Cotton grown in the West Indies.

    Learn More

Free Size Exchanges

  • Underwear Measurements

    We recommend comparing this product measurements to your favorite underwear.


    A(cm/in): S30.5/12, M33/13, L36/14.2, XL38/15

    B(cm/in): S32.5/12.8, M33.5/13.2, L35/13.8., XL36.5/14.4

    C(cm/in): S22.5/8.9, M25/9.8, L26/10.2, XL27.5/10.8


    *In general, US standard sizes are one size bigger than Japanese. European sizes are equivalent to the Japanese.