- Unisex - Soft cotton - Lightweight & breathable - Crewneck - Tear-away tag - Fabric blends: Ash and Heather Prism colors - 99% Airlume combed and ring-spun cotton, 1% polyester; Heather and Solid Blend colors - 52% cotton, 48% polyester; Athletic Heather and Black Heather - 90% cotton, 10% polyester. A portion of every sale will be donated to organizations in the fight for freedom, particularly those who help survivors of human trafficking or free the oppressed from tyrannical regimes. Thank you for helping us in this mission with your purchase.