Upper: fabric + TPU fusible film Outsole: Rubber+EVA The upper is made of breathable and wear-resistant mesh and TPU seamlessly spliced together, which is simple and elegant, with good breathability and wrapping properties. The sole is made of high-elastic EVA material and rubber design at the forefoot and heel-focus points, which highlights that the outsole is both light, comfortable and durable. Wear-resistant and anti-slip, the shoe shape adopts a wide last to meet the foot shape of Asians and ensure comfort; this series of shoes is light, comfortable and breathable, suitable for outdoor river trekking and daily wear. + (General style) Black: 36-45 Sand powder: 36-39 Gravel Lime: 36-45 Gray: 40-45 1 (General style) black/sand powder/gravel/gray