Products Description A classic athletic MBT style with reflective striping, comfortable and durable enough to wear all day to strengthen your core without any extra effort. This is our only Vegan, animal-free style, and is made with 100% synthetic materials. This Unique System Utilizes a high-grade 3D mesh lining along with a sockliner to improve air circulation and conduct moisture Single-layer mesh is an open woven and breathable fabric Synthetic materials are highly durable and resistant