1) Hair shirt 2) Haircloth 
A cilice s was originally a garment or undergarment made of coarse cloth or animal hair (a hairshirt) worn close to the skin. It was used in some religious traditions to induce discomfort or pain as a sign of repentance and atonement. Cilices were originally made from sackcloth or coarse animal hair so they would irritate the skin. Other features ...
haircloth shirt worn as penance
• (n.) A kind of haircloth undergarment.
Cil'ice noun [ French See Cilicious .] A kind of haircloth undergarment. Southey. 
a garment of haircloth formerly worn by monks; a hair shirt. · haircloth.