 | Samco Polypropylene Wicking Skull Cap | Black | One-Size. RefrigiWear Polypropylene skull cap, superior moisture wicking, quick drying, non-pilling. Black. Polypropylene shell Moisture wicking, quick drying Non-pilling Samco Polypropylene Wicking Skull Cap | Black | One-Size... - Samco Polypropylene Wicking Skull Cap | Black | One-Size. |