Check the listing for details. HALO II - pullover Headband - purple. Color: Purple, Condition: New with tags. Listed at 12.10 USD. The Halo II Pullover is a very unique sweat band featuring Halo Headband's Sweat Block Technology. This one of a kind technology blocks sweat from getting into your eyes keeping your vision clear for a great workout. The Halo II Pullover is one size fits all and uses dryline fabric to absorb moisture. Manufacturer – Halo Headband, USA Material - Dryline fabric Size - One size fits all Great under helmets Sweat Block Technology