There are several threads on the Zumba teams about shoes.
My favorite dance sneakers are the Ryka Transition and the Bloch Apex.
However, I have found that on very slipper synthetic wood floors, dance sneakers are TOO slippery. In that case, I wear my oldest, stickiest pair of dance sneakers, or running shoes with relatively minimal tread.
You might want to mention the issue to your gym too...perhaps they are cleaning the floors in the wrong way.
Dances: salsa (standard/LA), casino, rueda de casino, cumbia Colombiana, bachata, mambo, cha-cha-chá, merengue, reggaetón.
Currently learning: Mexican cumbia, danzón, Cuban rumba
Dances to Learn in the future: flamenco, tango Argentino, samba, belly dancing, bhangra, ballroom rumba
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