Shrapnel JW Anderson Felt Mules Are a Witty Slippers Update to Birkenstocks Posted on 22 December 2020 by jaywll in Shrapnel I do like a good pair of slippers, and this year I’d estimate I spent at least 90% of my waking hours wearing them. I think Bloomberg have overestimated the price range I’m targeting by a hair or two though. Source