Designed specifically for use with standing desks. The contoured, non-linear anti-fatigue surface encourages regular movement and the changes in standing positions which significantly reduces fatigue. Raised ergonomic surround feature allows further rocking or stretching of feet and ankles. Such activity stimulates blood flow and increase the body's metabolism which can reduce fatigue. Embossed foot massage features. Ergo bar and rear recess enable ankle flex exercise for added stimulation of the lower body. Fine polyester cover for added durability and increased comfort. Built-in anti-microbial formulation protects product from microbial deterioration, this will not wear away or wash off, works 24/7 for the life of the product. Stable anti-slip base.