For sale: a pair of Sierra Designs down booties. Men’s XL size, fit my size 11 feet with lots of room to spare, measure 12″ long on the bottom and 4.4 ounces with the stuff sack. 70/30 duck down fill, nylon shells and simple elastic tops. These are a sleeping-only design with no bottom reinforcement or outer sole. In like new condition, $30 including US shipping and PayPal fees.