Size/Fit Summary: True to size, Regular fit. Designed with colder climates in mind, the Original Short Rain Boot is updated with an insulated Sherpa fleece lining to further protect against winter chills. Able to be worn in temperatures as low as -5°C (23°F), your legs and feet will be feeling snug. Handcrafted from 28 parts, each boot is constructed from natural rubber, which has been vulcanized for a fully wateproof and durable finsh. In a classic black matte, venture out with the confidence that you will be completely protected.