Frequently asked questions

People use the Knee Flex Pro for arthritis, knee bursitis, patella tendonitis, a torn meniscus, ACL injuries and general joint soreness after activity. It also fits elbows, calves, thighs and ankles. Cocoon is a comfort and recovery product, not a medical treatment, so talk to your doctor about any injury or ongoing joint pain.

Use it cold for new injuries, swelling and sharp pain, for example straight after a run or a workout. Use it warm for stiffness, dull aches and tight muscles, for example first thing in the morning.

Put it in the freezer for at least 2 hours before the first use. You can also keep it in the freezer all the time and take it out when you need it.

Warm it in the microwave for about 1 minute, in short bursts, and check it with your hand before putting it on. It should feel comfortably warm, never hot.

Around 15 to 20 minutes, which is the length of a single cold or heat session. That limit is deliberate, because it protects your skin. Put it back in the freezer afterwards so it is ready for the next session.

Measure around your thigh about 10 cm above the kneecap and compare it with the size chart. If you are between sizes, go up. If the size is wrong, we will exchange it.

No. A grip lining covers the inside of the sleeve and holds it in place while you walk, train or sleep.

Yes. The outer fabric is soft and breathable, so many customers wear it overnight. The cold or warmth itself lasts for one session of around 15 to 20 minutes.

Lay it flat and let it air dry. Do not put it in the washing machine or submerge it in water, because that can damage the gel.

The inside is an antibacterial, non-toxic gel that is sealed so it does not leak. The outside is a soft, stretchy performance fabric, and the main seams are double stitched.

Orders are usually packed and shipped within 48 hours, excluding weekends and public holidays.

Once shipped, orders to the contiguous USA usually arrive within 7 to 12 business days. PO boxes and military addresses can take 7 to 21 business days.

Orders over $50 ship free within the USA. Any order of 2 or more sleeves qualifies.

Yes. Standard international shipping starts at $7.99 and delivery takes 7 to 48 business days after the order has shipped. Import duties or taxes charged by your country are not included.

You will get a shipping confirmation email with a tracking link as soon as your order ships. You can also use the Track order page.

If the order has not shipped yet, email support@mycocoons.com with the new address and we will update it. If it has already shipped, use the tracking link in your shipping email to redirect it.

If your order has not arrived within 12 business days, email support@mycocoons.com with your order number and we will investigate with the carrier.

You can try your Cocoon for 90 days. If it is not helping, email support@mycocoons.com and we will send a replacement or arrange a refund. See the returns policy for the full terms.

We process orders quickly, so changes are only possible before the order ships. Email support@mycocoons.com as soon as you can.

We accept Visa, Mastercard, American Express, debit cards and PayPal. Payments are processed securely through Shopify.

Enter the code in the discount box at checkout and click Apply. Only one code can be used per order. Bundle pricing for 2 or 4 sleeves is applied automatically in the cart.