Due to its versatility, the ThermalFlex continues to be one of Sun Mountain’s best-selling pieces. ThermalFlex is a soft, mid-weight layer that provides outstanding comfort and freedom of movement due to its 4-way stretch and quiet nature. For 2019, Sun Mountain has upgraded the zipper to a YKK Vislon zipper, which just makes a great product better.
This product can expose you to chemical(s) including DEHP , which are known to the State of California to cause cancer, birth defects, and/or other reproductive harm. For more information go to www.P65Warnings.ca.gov