Notrax 782 Sky Trax grey standing mat for dry working environments 60*91 A top quality ergonomic product that combines comfort, durability and safety. Sky Trax® is designed for those who are not willing to compromise on any of these criteria. An ergonomic advantage combined with a unique bubble design and a 19 mm thick base. The combination of an extremely durable top surface and a highly resistant microcellular vinyl base for maximum fatigue reduction.