Cotton Day (Kotton no Hi) — "kot (5)" and "ton (10)" form "cotton"

What Is Cotton Day?

May 10th is "Cotton Day" in Japan. The date comes from a wordplay on the numbers 5 and 10 — "kot (5)" and "ton (10)" together sound like "cotton." The day was established by the Japan Spinners' Association to promote the appeal and value of cotton and encourage the use of cotton products.

The Background of Cotton Day

Cotton is a natural material that has been used in clothing and household goods for centuries. It's highly absorbent, breathable, and gentle on the skin, which has made it a beloved fabric worldwide. The day falls in May, just as temperatures rise and cotton clothing starts to come into its own for the season.

The Characteristics of Cotton

• Highly absorbent: Soaks up sweat well, keeping you comfortable.
• Excellent breathability: Resists trapping heat, making it ideal for spring and summer clothing.
• Gentle on skin: Low irritation, suitable even for sensitive skin.
• Durable: Holds up well to washing and lasts a long time.

Fun Facts About Cotton

• India, the United States, and China are among the world's largest cotton producers.
• Organic cotton is grown without pesticides, reducing its environmental impact.
• In Japan, cotton cultivation spread during the Edo period and became a staple fabric for everyday clothing.
• Among natural fibers, cotton is considered especially easy to recycle.

Ways to Celebrate Cotton Day

• Take a look at the cotton clothing and bedding in your home.
• Try out organic cotton products.
• Use the day as a prompt for a seasonal wardrobe refresh featuring cotton items.
• Learn about the history of cotton farming and textiles.

May 10th: A Day to Appreciate the Comfort of Natural Fabric

Cotton Day is a chance to rediscover the appeal of cotton, a material we encounter every day. Its softness and comfort can make everyday life that much richer. On May 10th, take a moment to enjoy the simple comfort of cotton products.