My dog’s name is Kelty. He is known to eat socks. Literally eat socks. Not just chew holes in them, but actually devour the fabric.
He also eats other underwear, baby clothes, and anything that smells and tastes dirty or like baby formula.
This is Kelty:
We have several nicknames for Kelty. One of them is “Fats,” because he just is. Another is “Welty” or “Welts.”
I complain bitterly about the things he destroys, but I complain the most about my lost socks. I have no matching socks left, and wearing mismatched socks makes me a little sad — though I have come to accept my fate. To ease the pain a little Angie bought new socks for me, to replace those that Welts had devastated with his insatiable appetite.
Read the label. I’m not sure these socks are going to last too long, or at least the lycra bits won’t.
The Waffle Group 
FatDog scorns you spindly humans and your need for “socks”. FatDog consumes socks to build a thick winter layer of fat. FatDog shreds your socks for bedding, and you might just be next. FATDOG MUST FEED!
http://www.labradorice.com/fatmouse/ for more.
LOL, is he picky about the fabric :)? And I cant imagine how his poo looks like later.