The Thinktank Mirrorless Mover 20 is a compact bag designed for small mirrorless cameras. I think they mean digital mirrorless cameras, but this is also the right size for a 35mm rangefinder or a very small SLR. In excellent condition. Main compartment dimensions are approximately 9x15x22cm; there is also a front pocket with enough room for a charger and a few smalll accessories.