These diabetic friendly socks are perfect for those with sensitive feet. They are made with a wool mix which makes them comfortable and warm to wear, and have a cushioned terry-loop foot for added protection in sensitive areas. They also offer the following features, Non-Restrictive Top. Fully Cushioned Foot. Smooth Toe Seam The non-restrictive top is a loose knit mesh to prevent restriction of blood flow and improve comfort for swollen ankles. You can be confident that these socks do the job, not only do they come with an unconditional 6 month guarantee they are also accredited by the Institute of Chiropodists and Podiatrists. Composition: 80% Wool, 20% Polyamide.