The britax shiny cosytoes will keep your little one toasty and warm in colder weather whilst adding a pop of colourful shine to your pushchair the footmuff is suitable from birth to approximately 3 years suitable for use with a 5 point harness and features a universal design compatible with most prams and pushchairs the britax shiny cosytoes is compatible with the britax b range affinity smile go and go next pushchairs features suitable from birth to 3 years approx universal design that