The best footwear is the kind you don't think about: the pair by the door you slide into without breaking stride. The Fish-On Slip-On Fleece is exactly that, the cozy cold-weather take on the FOSO you already reach for. Same grab-and-go convenience, now with a thermo-regulating fleece lining that brings the warmth from bedside to dockside, in the wheelhouse, or warming up in the ice house between flags. Underneath, it's still all FOSO: a durable, single-piece IM EVA chassis that's plush, lightweight, and hoses clean after a day in the mess, with an anatomical footbed that keeps you supported when the deck gets lively. A grippy SR-C gum rubber outsole grips deck, dock, and dirt without marking the boat.