The Everett S3 is a non-metallic waterproof safety boot that offers cold insulation up minus seventeen degrees.- Thinsulate lined for cold insulation that can resist up to -17 degrees- Waterproof, full grain leather upper keeps feet dry and protected, and provides long-term durability- Tough and durable rubber outsole that provides excellent grip- Composite toe: same great protection but non-metallic and lighter than traditional steel- Energy absorption, puncture resistant and with a heat resistant outsole- Non-metallic: ideal for those working in aviation- Molded TPU scuff cap and heel guard for enhanced protection- Molded EVA midsole offers additional shock absorption and all-day comfort- Antistatic