Our latest Winter coat obsession is all in the details. We've spotted some seriously stylish girls — from Olivia Palermo's clever layering to Zoe Saldana in a shearling drape-front jacket — sporting super-slick leather sleeves. Talk about an ultra-luxe way to transform your cold-weather wardrobe from comfy to cool. Whether it's liquid leather peeking out of a classic belted trench coat or a sleek leather sleeve attached to a plush fur vest, this particular trend ups the ante on your Winter style tenfold. Click through to see even more celebs donning leather-sleeved coats, and then shop your favorites at the end of the slideshow.