The first silicone menstrual cup was the UK-manufactured Mooncup. Most menstrual cups are now manufactured from medical grade silicone because of its durability and hypoallergenic properties, though there are also brands made of TPE (thermoplastic elastomer). Menstrual cups are becoming more popular worldwide, with many different brands, shapes and sizes on the market.[6] Most are reusable, though there is at least one brand of disposable menstrual cups currently manufactured.[6]