Ilse Jacobsen Hornbæk RUB1 Laced Rubber Boot is an iconic knee‑length rain boot designed for wet and cold conditions. It pairs a durable natural rubber upper with insulating EVA soles and a warm textile lining for reliable protection and traction. Key attributes: Gray | Grey | Natural rubber | Waterproof | Insulating sole rated for cold conditions (down to -20°C) | EVA outsole with non-slip tread | PVC-free | Laced closure with metal eyelets | Textile (cotton-fleece) lining | Textile-lined footbed | Insulating insole | Knee-length shaft | Decorative D-ring at back | Logo on shaft | Thick treaded outsole | Metal eyelets | Dimensions & fit: Medium width | Composition & care: 80% natural rubber | 20% other materials | Lining: cotton-fleece | Outsole: EVA | Wipe clean with a damp cloth. Treat with rubber oil monthly to maintain finish. Store away from direct heat and sunlight.