In a pair of silk stockings the silk stockings are a symbol of?

Mrs. Sommers's selfish needs
In Kate Chopin's "A Pair of Silk Stockings," the stockings represent both luxury, as well as pleasure to Mrs. Sommers. By ridding herself of her old cotton stockings and stuffing them in the shabby shopping bag, it's as if the silk stockings have allowed her to glide into a different social class.