Unique anti-fatigue mat ergonomically designed specifically for use with standing desks. Contoured non-linear profile of between 0.8" and 2” facilitates numerous standing positions. Raised ergonomic surround feature allows further rocking or stretching of feet and ankles that can stimulate blood flow & metabolism which helps reduce fatigue. Contains an active anti-microbial ingredient to protect the product from microbial deterioration. Effective 24 /7 for the life of the product. Ideal for use with Sit to Stand desking.