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  • Regular price ¥2,250


*International shipping cost 690 JPY↑. (by different zones of countries and different shipping ways.)

Understand the real needs of men, basic models designed to adjust the body shape of Asians.

Suitable for all occasions and activities. Simple, pure, fit, and comfortable. Just like our skin exudes natural luster and charm.
『Under-Standard』represents the core value of us, the most basic mission of a pair of underwear: make people happy every day.

Simplicity fashion, a feeling of stability to be confident anytime.
Understand is designed for Asian men's body style, fit and clean cut with the comfortable, flexible and soft light fabric. 

The U Convex Capsule design creates more space at the front to avoid oppression and friction during exercise, also increases heat dissipation to being more breathable.

The fitted cut of the back provides a natural upward support for the hips.

The design focus on the most basic practicality of underwear, instead of the extra stitching and fancy design. Returns to nature and simplicity, emphasizing the protection and comfort. Perfectly expressing the natural body lines and charm of men. 

The color is pure black with barely blue logo. The back side is dotted with a small light bulb that represents our brand concept "understand". 


・Fabric:93%Cotton / 7%Spandex
・Design from Japan / Made in Thailand
・Highly  hygroscopic / stretchable / breathable
・Comfortable and soft light
・U Convex Capsule design:fit / breathable / no oppression
・Single layer of fabric and no opening at the front

Asian /
US Size
Waist Hip Thigh Side
S / XS
64~74 29.5 31.5 20.5 19
M / S
72~82 32 34 22 20
L / M
80~90 34.5 36.5 23.5 21
XL / L
88~98 37 39 25 22
96~106 39.5 41.5 26.5 23

*In unit of measurement of length we use centimeter (cm) to measure.
*Our design is fitted-cut, please choose the size bigger than usually you buy from other brand if you want to wear roomier. 
*There might be some inevitable slight errors in the production process by different characteristics and properties of fabrics, please understand it.
*As different computers display different colors, please understand the actual color may vary slightly from your monitor.


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