Product Name: Owlet Smart Sock 2 Accessory Sock
Whether you desire more color options for your new Smart Sock unit or replacing an existing sock, Owlet's accessory fabric socks are the perfect choice. Compatible with Smart Sock versions 1 and 2, the fabric sock is designed to comfortably yet securely wrap around your baby and house the Smart Sock sensor (sold separately).
Each sock set contains 3 sock sizes (1-3). Please note, the Updated Size 3 has replaced the Original size 4.