Designed to protect IQOS 3 DUO, the form of the silicone sleeve fits over the curves of your device without adding bulk. On the outside, the texturized soft-touch finish of the silicone feels great in your hand and you can keep it on all the time. Plus, you won’t need to remove it when charging which is rather convenient. Compatible with IQOS 3 DUO and IQOS 3.