Cleto Reyes Castro was born in Mexico City on April 26, 1920, full time of national reconstruction after 10 years of Revolutionary struggle. Due to the difficult economic situation of his family, At the age of 12, he began working in a saddlery workshop in which baseball items were manufactured.
In 1936, while studying elementary school in front of the Arena Peralvillo Cozumel, his great love of boxing was born. In 1938 Cleto Reyes managed to participate in an amateur tournament, offering such a good fight that it motivated the public to throw coins into the ring; but the blows received were enough to persuade him not to fight again. However, he decided to fix the gloves he used during the fight, thus starting glove making.
Later he obtained the approval of the Box Commission of the Federal District, and in the year 1945 Cleto Reyes' gloves were used for the first time in a World Championship. "The Countess's Arena" It was the scene of the fight between the second Mexican champion Juan Zurita and Ike Williams.