Because the mask is one of the most crucial pieces of equipment for a fencer, it is essential that it fits correctly. To ensure a correct fit, specific measurements must be taken. It’s necessary to measure the vertical head circumference. Wrap a tape measure under the chin, from under the jaw, up over the ears and across the top of the head. Based on that measurement, fencers can select the appropriate size of fencing mask. Each size, small, medium, large and extra-large, covers a range of measurements. The store personnel will certainly make sure that the head is measured correctly and will assist in the selection of the fencing mask that fits the best.