Tile Top Select is the mid-range offering within this popular family of marbleized anti-fatigue mats?the ?Better? version of our Good-Better-Best. The anti-microbial marble top surface is a chemical-resistant and durable PVC that is lightly textured [almost smooth], and supple to the touch. It is also easy to clean, which is one of the main reasons this mat is so popular. To combat fatigue, Tile Top Select features our ?Flex-Link? sponge, a closed cell PVC foam offering solid, stable performance characteristics.