There are many reasons that warrant investing in a knee brace, but it's important to get the right one for you. Here are some tips to help you shop for the best knee brace:✔️ Purpose: "When shopping for a knee brace, first identify the need or purpose of the brace, whether it’s for injury prevention, rehabilitation or pain relief," Heimann says. ✔️ Support: While medical-grade quality knee braces will provide the most, you can still obtain some support from standard knee braces. You can also consider knee braces that feature a built-in silicone gap that lifts the fabric away from the knee cap. He advises shoppers to look for a knee brace that's at least four inches below their knee and four inches above.