The Boyfriend Grip SockBorrowed, but better! The Boyfriend Sock puts a fresh spin on retro tube socks. Cropped just right for your next studio session or streetwear moment. Designed with our signature breathable, moisture-wicking performance fabric, these cult-favorite socks blend throwback charm with modern comfort. Whether you're gripping the reformer or heading out post-class, they’ve got your back (and feet).