Merrell Tetra Launch Waterproof boots. In used good condition and very comfortable! SIZE: EU:39 US: 8.5 Calf circumference: 14.5 inches (also includes triangle stretch elastic for added stretch) Fits true to size MATERIAL: Feature a full-grain leather upper and a durable rubber outsole. Waterproofing: The boots are waterproof, designed with Merrell Weather-Tight construction and often a Thinsulate lining to keep feet dry and warm in various conditions like snow and slush. Design: They have a tall, mid-calf shaft with both a convenient side zip closure and decorative strap-and-button details. Comfort: The design includes a mesh lining with odor control treatment, a removable EVA footbed, and QForm Comfort or Remember Me Foam midsoles for cushioning and support. Style: These can fit many different styles from bohemian/festival, to casual.