The new Smart Sock 3 fabric sock set works with your existing Smart Sock 3 sensor and includes four fabric socks, in two sizes.

Smart Sock 3, Smart Sock Plus, base stations and sensor not included. Fabric socks compatible with Smart Sock Plus Size 1 Newborn and Size 2 Infant only. Fabric socks are not compatible with Smart Sock 2.

INCLUDES: Each set includes 4 fabric socks for left and right feet: 2 x Size 1 Newborn socks and 2 x Size 2 Infant socks. Socks fit babies approximately 2.26 kg to 13.6 kg.