BEST FOR: Lifestyle PERFORMANCE TESTED: Proven in lab testing for exceptional cushioning throughout for standout comfort RYKÄ Q TECH: Built for a woman’s quadricep muscle Q ANGLE with a narrower heel, roomier toe + contoured cushioning for stability MATERIALS: Soft unlined engineered ribbed knit with stretch top line + Padded heel collar. INSOLE: Anatomical insole with extra arch support and heel support + QMassage bumps for extra comfort. OUTSOLE: Durable molded rubber cupsole MATERIALS: Soft unlined engineered ribbed knit with stretch top line + Padded heel collar. INSOLE: Anatomical insole with extra arch support and heel support + QMassage bumps for extra comfort. OUTSOLE: Durable molded rubber cupsole INSOLE: Anatomical insole with extra arch support and heel support + QMassage bumps for extra comfort