Waterproof long boots that withstand -40℃, with non-slip soles. These freezer cold-weather boots are ideal for working inside refrigerators or in refrigerated trucks. They are compatible with temperatures as low as -40℃. ・Warm interior with a multi-layered quilted lining. ・Felt sewn into the sole to prevent cold from penetrating. 【Far-Infrared Ray Padding + Antibacterial + Deodorizing Quilting】 The far-infrared ray effect of special ceramics kneaded into the padding improves the heat retention inside the boots. Also has antibacterial and deodorizing effects. 【Soles suitable for forklift operation】 ・The angled cut at the back of the sole makes it easy to operate a forklift. 【Durable and non-slip soles】 ・Non-slip for safer work. ・The soles are also very sturdy, making these long boots durable for long-term wear. A toe cap specified in JIS T 8101 (safety shoes) is installed, protecting the toes.