The strap is not exactly leather. On the outside, what appears to be genuine leather with a slightly worn look (vintage look), beautiful for my taste and makes the Huawei gt3 active (black) watch look completely different, truly impressive. Under the leather, it has silicone, a pleasant texture on the skin that does not make my hand sweat too much. The clasp is of good quality and the strap seems to be well-made overall. Unfortunately, the skroutz description does not mention anything about silicone. If it were 5 euros more expensive, I would give it 1 star, but at this price, I have no complaint except for the misleading description, which is why I deduct 1 star.