Pacific Black/Black, M Size 6.5 - 7.5 Women's (M) Anti-Slip, Anti-Odor. Less than $20. The ultimate travel companion: Massaging Insole, Superior Arch Support and Ergonomic Foot Bed Made in the USA! Reduce your Carbon Footprint. Wear 100% recyclables shoes Arch Support and Supportive with a massaging insole that helps relieve foot and back pain. BPA Free