"Dance Class by Trimfoot Company" Foot Thongs. Suede sole pad provides protection for the ball of the foot for dancing that requires the bare look. Elasticized bands for a snug fit. Sizing: X-Small (child's 1-3) Small ( women's 4-6) Medium (women's 7-8) Large (women's 9-10) X-Large (women's 11-12). Wide feet may need a size larger. Narrow feet may need a size smaller.