The IQOS Duo Folio is a compact folio finished in fabric which allows you to keep your IQOS kit and your second holder together in hand. Magnetic closing flap, side window to check battery level, and easy access to USB port are unique caracteristics of this accesory. This Duo Folio is ideal if you want to be able to carry and protect your IQOS kit and your extra holder. Compatible and IQOS 3 DUO and IQOS 3.