ION Plasma Slipper 1.5 Round Toe unisex 2026The Plasma Slippers 1. 5 are your go to budget oriented neoprene shoes without compormising quality. Just slip in and go! Offering a great fit and protection from the elements, ION wraps it all up in a spicy and unique design. Choose these ones if you're looking for the perfect mix of warmth from the thin but sheltering 1. 5 mm thick layer and protection from shells, stones and other hazards on the spot whilst still experiencing a barefoot feeling.