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Everything in this program must be practiced barefoot or in flat shoes without cushy soles. Wrestling shoes, work boots, tactical boots, and Converse Chuck Taylors are authorized. Almost any shoes worn by a guy named Chuck will do. Chuck #1, RKC, wears size 15 chicken-yellow water shoes, and Chuck #2, RKC, digs skateboard Vans with a chess print. Unconventional, but good enough not to warrant a set of push-ups.
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Pavel Tsatsouline (Enter the Kettlebell!: Strength Secret of the Soviet Supermen)