Idaho Centennial Trail - Thru Hiking T-Shirt Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat One of our many unique and original shirt designs that make a perfect gift for Birthdays, Graduations, Christmas, Anniversary and many more Holidays. Great gift ideas for your Friends and Family. ICT, Hiking, Camping, Thru-Hiking, Idaho, Running, Outdoors, Big Horn Sheep, Mountains Lightweight, Classic fit, Double-needle sleeve and bottom hem