Top quality cotton 100% - Made in Japan. You need this cotton wear under the Iai-gi to absorb the sweat. White collar. Size-2,3,4,and 5 are available. Please refer the Size chart for your size. Size Chart Size 2 - 155 to 165cm (5.1 to 5.5 ft) Size 3 - 165 to 175cm (5.5 to 5.8 ft) Size 4 - 175 to 185cm (5.8 to 6.1 ft) Size 5 - Over 185cm (more than 6.1ft)