This list offers you a Plant-A-Tree program per one hat purchase in collaboration with Carbon Neutral. Through Carbon Neutral's Plant-A-Tree program, we plant one tree if you purchase it together with your order. If you didn't choose this option, we will substitute and pay for a tree. We cannot ignore our impact on the eco-system through internet shopping and shipping by Air. We want to take a step forward for the future, and we appreciate your understanding and support. Please take a look at this article for further information.