The insole's protrusions provide a pleasant stimulation to the soles of your feet♪ The "heel lock structure" allows you to put them on and take them off while standing, which is also appealing. 【Details】 ・Toe: Round ・Heel: Mid-heel 【Materials】 ・Outer: Synthetic leather, other ・Outsole: Synthetic sole 【Size (Width)】 ・4E 【Size (Other)】 ・Heel height: Approximately 4cm ※Excluding insole 【Weight】 ・Approximately 235g per shoe (slight variations depending on size) 【Country of Origin】 ・Made in China