BLANCHE: Perspiration Is healthy. If people didn't perspire they would die in five minutes. [She takes his coat from him.] This is a nice coat. What kind of material is it?
MITCH: They call that stuff alpaca.
BLANCHE: Oh. Alpaca.
MITCH: It's very light weight alpaca.
BLANCHE: Oh. Light weight alpaca.
MITCH: I don't like to wear a wash-coat even in summer because I sweat through it.
BLANCE: Oh.