Endura Baa Baa Merino Skull Cap A snug thermal skull cap bringing the highly versatile properties of pure Merino wool to yet another application. Now you can be dressed in Merino quite literally from head to toe. It's the next best thing to actually being a sheep. The Baa Baa Skull Cap is woven for thermal insulation & thin enough to fit under your helmet to keep you warmer in all weathers. Magic Merino retains thermal insulation even when wet. Helmet compatible fit Silky, itch-free comfort Naturally odour resistant High warmth to weight ratio even when wet Fully-fashioned seam free Easycare machine wash