Bug-Off socks help protect you with insect repellent to help keep you safe when you are out. Invisible & odorless insect protection to help shield you from insect borne diseases. Helps protect against ticks, mosquitoes, flies, chiggers and ants. These socks are thick and soft and were engineered for extreme comfort while hiking, backpacking, walking, fishing, hunting and working outdoors. The insect-proof long lasting protective finish will deter flying and crawling insects. EPA approved.