Bottom part is closed Inner Velvet Matte Non-slip Hand High Quality Launch Silicone Stylish design with velvet inner surface Smooth soft and matte surface structure provides excellent touch feeling Ultra flexible and fine-structured silicone material Resistant to dirt and fingerprints Long lasting usage time. Water resistant. During wireless charging, you can easily charge it with your case on. It covers the entire body of the phone and protects your device from daily scratches. Its surface has a structure that can be easily wiped against stains. With soft TPU silicone material, it is highly resistant to drops and bumps.