Good: Abmat: The original Rogue-branded Abmat is an affordable, portable accessory that can dramatically increase the effectiveness of sit-ups and other ab-targeting floor exercises.
Better: Abmat Pro: The thermoformed molded AbMat Pro updates the standard AbMat design with special contouring for the lower back, securing the spine and maintaining body balance to enable a more complete, effective sit-up. Still affordable, compact, and portable.
Best: AB-2 Firm Abmat: For the CrossFitter looking for more emphasis on core-specific strength, the AB-2 Firm AbMat adds density foam to the original Abmat model, improving posterior and anterior flexion and contraction. The lumbar region has more support, causing greater flexion while in supine position.