Hi Rita, I would have to ask the manufacturer as those are not part of their Solar line which are 50 UPF. Those SOLARS are all that silky dry fast tech material not the cotton feel. http://vaporapparel.com/solars.html

I do use Champion and Hanes Cool Dri ladies V-necks also which are 50 UPF but again are tech material, I'll shoot you an email. <img src="http://www.traveltalkonline.com/forums/images/graemlins/Thumbsup.gif" alt="" />