Woven with a yarn made of cotton and rayon - it's double-sided, with a "gauze" on one side and a flat surface on the other - both are absorbent.
Gentle to the skin, with fine charcoal powder kneaded in. The microscopic pores on the surface of the charcoal absorb odor molecules for excellent odor-eliminating properties. The absorbed molecules are removed during laundering and drying in the sun, so effect lasts through repeated use.
Made in Imabari, Japan - a district known for its textiles for centuries. Light grey on both sides.