Yadkinville, N.C.-based base layer manufacturer ColdPruf Base Layer, a division of Indera Mills Co., has selected Repreve recycled polyester fiber for use in its Eco-Terra and Pro-Tek base layers for men and women. Manufactured by Greensboro, N.C.-based Unifi Inc., Repreve is made from a blend of post-consumer and post-industrial recycled polyester content including polyethylene terephthalate (PET) bottles.