Yes, Aculief is one-size-fits-all. It’s all thanks to the buttery-soft and breathable fabric that stretches as needed to provide a comfortable fit on any head shape and size. It’s perfect for both adults and kids! Many customers describe it as having a cool pillow around your head. The stretch fabric allows Aculief to hold the frozen gel packs in the perfect place, ensuring they target all the areas that may be causing you pain with light, comforting compression.