Eco friendly plus made in usa, arbor's 70-percent viscose from bamboo, 30-percent organic cotton pocket tee features a turn of the century outdoor, craftsman back graphic, shirts made with viscose from bamboo are softer, more breatheable and provide better uv protection, not to mention the fact that bamboo is the more renewable plant on the planet , growing 4 feet in a day and up to 80 feet high , requiring no chemicals or extra water to achieve this amazing growth rate, since 1995, arbor has been feeding the fashion and outdoor markets with stylish and sustainable products that perform on the streets and in the outdoors, read more at www,arborcollective.com