The Bugaboo Dual Comfort Seat Liner is reversible and provides optimal comfort in any season. The summer side features a 3D mesh for optimal airflow, which helps to prevent overheating. With new anti-bacterial properties, the seat liner stays fresh on the hottest of days. The comfort side features a super soft pique fabric with Cooldry® properties that help to regulate body temperature. It provides the best comfort for your little one and fits all Bugaboo strollers except the Bugaboo Ant.