International Sweatpants Day
International Sweatpants Day is held on January 21. This event in the third decade of the month January is annual. 
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International Sweatpants Day, also known as International Sweatpants Day, is celebrated every year on January 21. This curious holiday has its origins in 2009, when four Austrian high school students - Alexander Painsi, Matthias Strohmeier, Matthias Geisriegler and Martin Riesel - decided to come to school in sweatpants on Shrove Tuesday. The campaign was so successful that they decided to make it a tradition.
The special features of this day are the emphasis on comfort and self-expression. Originally started as a school campaign, the day quickly developed into a global phenomenon that was spread via social media. As early as 2011, over 600,000 people from more than 50 countries took part. Sweatpants, once labeled a fashion sin, are celebrated on this day and symbolize comfort and relaxation.
Similar holidays and events, festivals and interesting facts
Camcorder Day on January 20 (On this date in 1982, the camcorder was first introduced into the public marketplace by Sony Electronics);
European Day of Mediation on January 21
Museum Selfie Day on January 21 (Held on the third Wednesday of January);
National Answer Your Cats Questions Day on January 22
Celebration Of Life Day on January 22
Handwriting Day on January 23 (The day was basically started by the Writing Instrument Manufacturers Association in 1977);
Measure Your Feet Day on January 23
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