Power Wool™ Skull Cap

• aerobic-weight skully in Polartec® Power Wool™
• isolates plush merino wool on the interior
• with a resilient yet supple exterior
• super-comfortable design keeps only the merino side next to skin
• construction tuned for stretch, durability, and minimalism
• stretches over other headwear
• integrates under a helmet
• stays secure at high speeds
• fits within the palm of your hand
• tremendous comfort and utility 

Merino sheep wool evolved to endure extreme temperature swings. This enables headwear that can stand up to harsh cold without being uncomfortable in warmer conditions. Its hygroscopic nature also absorbs up to a third of its weight in moisture without feeling damp.