The Ab Mat allows for all the traditional abdominal training benefits with added comfort and portability. The 15” x 12” mat gives you a more complete movement allowing a greater of range of motion when doing sit ups and also takes away added sit up stress to the spine. It works by filling the space between your lumbar arch and the floor to support the spine so more of the abdominal region is activated and targeted during sit-ups. The Ab Mat will work for users of any size and can be utilized to provide lower-back comfort and support during ab exercises.