This model is offered with a flap that allows it to stay in place on your head, while effectively protecting you against the cold. Indeed, it prevents the wind from penetrating inside the beanie. This detail lets your skin breathe and not sweaty. This beanie is made of 100% acrylic fiber. This fabric makes it a good thermal insulator, but it is breathable enough to keep your head well ventilated. This unisex beanie is lighter than it looks. It weighs 70 g (under 1kg!). In other words, it provides you with excellent wearing comfort. Offered in one size, it comes in several colours or in a pack of black. Find your favourite colour because winter is coming !