Their lowest-bulk sock is built for all types of runs on all kinds of surfaces. This unique five-toe performance design eliminates the friction that can cause blisters, and keeps your toes free for better feel and natural fit on uneven terrain. Soft, durable seamless construction creates a supportive, secure fit, a mesh top and COOLMAX® EcoMade fibers help keep feet dry and cool, and a band under the arch provides support and stability. The no-show length rests below the ankle and features a heel tab to protect against chafing and keep your socks from sliding into your shoes.