The Endura BaaBaa Merino Skullcap II is the absolute best of both worlds - combining the great insulative and odour controlling properties of merino and the excellent moisture management properties of synethic fibres, keeping your head warm and comfortable throughout your ride. Endura BaaBaa Merino Skullcap II Features Merino blend for soft itch-free comfort Helmet compatible fit Naturally odour resistant High warmth to weight ratio even when wet Endura BaaBaa Merino Skullcap II Materials Elastane (7%) / Wool (93%)