NCAA Alabama Crimson Tide Active Wristband, Red, Medium The negative-ions in Trion:Zs NCAA Collegiate Licensed Active Wristbands are released in measurable and significant amounts at rates 50 to 100 time higher than competing brands. The water resistant silicone material in Trion:Z's NCAA Collegiate Licensed Active wristbands combine negative-ions and magnetic technology in a highly functional design to alleviate sweat absorption. Trion:Zs twin 1000-guass magnets are structured in our patented Alternating North-South Polarity Orientation to provide increased magnetic field flow. Colorful, stylish, and comfortable, Trion:Z is worn by over 250 pros on the PGA, LPGA, Nationwide, and Champions Tours.