Compositions for binding organic or inorganic fibers are described. The wrist support is designed to steplessly adjust horizontal andor vertical angles between its hand back part, wrist part, and finger part, and is designed such that a fastening band unit is easily connected to and removed from a main body of the wrist part, and allows a user to feel comfortable when wearing the wrist support. Each of the micro-structures includes a supporting layer and a convex top portion.