Wiley X PT-1 Safety Sunglasses. In the Changeables Series from Wiley X you will find the traditional shield offered in the PT-1. The Wiley X PT-1 is specifically designed to cut wind, and the circular frame provides unmatched peripheral protection. The Wiley X PT-1 is proudly Made in the USA. If you are looking for a rugged and sturdy frame, then look no further the Triloid nylon frame, which is virtually indestructible. The custom nose pad is constructed from a soft neoprene rubber compound that can be adjusted to accommodate any size nose bridge and set the level of the frame on the face.