Our waist support is handmade and made up of many great materials.First is bamboo charcoal yarn (竹碳纖維紗) .It naturally regulates humidity antimicrobial, breathable (透氣性), cool and thermal regulating. It also reduce static electricity (減少靜電) , releasehealthy ions, also has deodorize (除臭) and anti-bacterial function (抗菌).Second is NanoRed (奈米紅) .It′s a functional yarn which is far infrared nano particles added. It can keep warm and help blood circulation (幫助血液循環) .Third is The Sandwich Mesh Fabric (三層網孔織品) .This material is high air permeability and breathable. And it has good compression strength (很好的壓縮強度) and provides pressure redistri