IMAK Arthritis Socks Large (Pair) Knee Supports Braces 110 x 35 x 2 8975 110 x 35 x 2 Colors Beige Saturation Sound Pressure Level (SSPL) 129dB Frequency Range 200~5000 Hz Total Harmonic Wave Distortion ≤10># td### Reference Test Gain 56±5dB Input noise ≤20+3dB Sound amplification 80 The IMAK Arthritis Socks help relieve aches pains and stiffness associated with arthritis of the feet * Unique design provides mild compression for warmth and helps increase circulation to promote healing * The Arthritis Socks are made of soft breathable cotton material * Provides mild compression to help control swelling * Cotton material allows skin to breathe and keeps feet dry * Comfortable all day and night