Details Designed to last in temperatures as low as - 20°C, these Pink Viking Ultra Boots from Viking will keep tiny toes protected and warm. Crafted from durable PU with many air bubbles to give a premium insulating effect without adding any bulk. They are perfect for any season thanks to their insulation and waterproof materials. They are lined with wool for an even more snuggly experience and the thick sole has excellent traction for a sure step. - Outer materials: PU (PVC-free) - Inside: 30% Wool