Under armour undeniable ii medium duffel bag the under armour undeniable ii medium duffel bag can be used for trips to the gym or on long weekends away featuring a multitude of storage options there is a large main zip fastening compartment with zip pocket inside for valuables a large vented gusseted zip pocket to the side for laundry or shoes an additional zip pocket to the opposite end a front zip pocket plus a mesh pocket and d ring on the front panel the bag includes storm technology