2 Knee or Leg Support Cushions with Removable Washable Covers - Sciatic, Spinal Alignment and Calf Support Pillows. Pillow cover: 80% cotton, 20% Polyester BACK PAIN, SCIATICA, HIP AND LEG PAIN RELIEF: Use side by side to elevate sore, tired or swollen legs or stack them together to position as a cushion support between the knees. PREMIUM BASF MEMORY FOAM: Removable and washable outer cover! The highest quality materials ensure loft and form is maintained. Olilo is a premium USA brand. ERGONOMIC AND ANATOMIC DESIGN: Improves circulation and nerve pain by ensuring proper alignment of hips and spine. Elevation of tired and sore legs can improve swelling, edema and varicose veins in the legs. Sleeping with the cushions stacked between the knees provides proper alignment for the hips, spine and lower torso minimizing spinal, sciatic and neuropathy discomfort. 1% FOR THE PLANET MEMBER: Sleep well while doing well. Olilo Sleep Solutions is committed to Eco-Friendly and Socially Sustainable business practices. Sleep soundly knowing your purchases are helping worthy and notable environmental and social causes around the world. SATISFACTION GUARANTEED! Our customers love our leg support cushions and we are confident you will too! "These leg support cushions were a god send! I'm resting so much better now that I can elevate my legs and feet after a long day standing." "Love being able to rest my legs in these and then stack them between my legs when I sleep on my side -- sleeping and resting better now!"