We need proper trekking equipment and clothing in order to MARDI HIMAL TREK. Although trekking to Mardi Himal is considered an easy-to-moderate trek, you should have a proper trekking gears and clothing.
Keep in mind, that even if you forget some trekking gear, you can buy it in Kathmandu as well as Pokhara. Here is the list that is necessary to do Mardi Himal Trekking.