Ilse Jacobsen RUB1 Long Rubber Boots combine a laced, designer look with reliable waterproof protection and an insulated fleece lining for cold, wet conditions. These knee-high wellies pair adjustable front lacing with a full-length inner zip for an easy, customized fit. Key attributes: Blue | Indigo | Natural rubber | Waterproof | Oil resistant | Insulated (resists down to -20°C) | Full-length inner zip | Adjustable front lacing | Rear pull-tab for easy on/off | Knee-high silhouette | Contrasting off-white laces with silver eyelets | Logo plaque on cuff | Visible stitched rand where upper meets sole | Chunky treaded sole | Dimensions & fit: Insole length: 22.5–27 cm (size-dependent) | Height (shaft): 33–36.5 cm (size-dependent) | Calf circumference: 37.5–42 cm (size-dependent) | Loose fit — consider choosing one size down | Length: Below knee | Heel: Flat | Composition & care: 80% natural rubber, 15% white fillers, 5% other (upper) | Inner lining: fleece | Sole: 45% viscose, 35% polyester, 20% polyacrylic | Wipe clean with a damp cloth; treat monthly with rubber oil to prevent drying; store indoors away from direct sunlight; hand-wash laces and air dry.