Sorgen Microfiber AD Class I Medical Compression Stockings are made of the Microfiber fabric which is extra soft and of superior quality. The microfiber fabric wicks away moisture from the skin preventing perspiration from clinging to the skin. The user always stays cool and comfortable in all weather. Microfiber also retains its shape for a long time with repeated washes, with no change in compression level. The stockings provide graduated compression thereby exerting maximum pressure at the ankle and gradually decreases towards the calf and thigh. This helps the flow of the blood back to the heart relieving pain, fatigue and swelling of the feet.