Why it works as a gift
Slippers are one of the few gifts that can be worn every day, and plenty of men keep a worn-out pair until someone else replaces it. That makes a good pair feel more considered than its price suggests. The Scuff is UGG's men's leather slip-on: a full-grain leather upper, a 17 mm sheepskin insole over a foam footbed, a suede outsole and recycled polyester binding, per UGG and the Amazon listing.
The design is backless, so it slips on without hands, which is exactly what you want when carrying coffee to the table or answering the door. The dark grey leather looks neater than a fleece or knit slipper, and it suits a man who works from home and wants something presentable on a video call or when a neighbor drops by. The sheepskin insole is what does the warming, right under the foot.
Against a cheaper fleece slipper, the Scuff is the step up in materials: leather and sheepskin rather than synthetic fleece. Against a fully enclosed UGG moccasin, it is easier to kick off, but it leaves the heel open, so it suits a heated home better than a drafty one. Its suede sole is made for floors, not for the driveway.