Trion:Z?s officially licensed collegiate series wristbands feature 65+ teams in colorful, stylish, and comfortable color combinations. * The negative-ions in Trion:Z?s officially licensed collegiate series wristbands are released in measurable and significant amounts at rates 50 to 100 time higher than competing brands. * Trion:Z products will maintain their negative-ion producing properties when wet- they?re functional in the shower, ocean, and the pool.