Thanks, Tina! My first pair of toasty slippers in a few years. These badboys are model RN 88276 and have an upper lining and sock lining consisting of 100% wool. So far I can say they are very warm and seem size 12’s seem to run a bit small on my feet (I wear size 12’s in street shoes and size 11.5 in soccer shoes). Curious to see how they compress and fit over time.