Do I need an infant car seat adapter to attach the MESA to the RIDGE? October 12, 2021 14:01 Updated Follow Yes, the RIDGE transforms into a travel system with the Adapters for RIDGE (MESA/MESA i-SIZE, and Bassinet). Click here for adapters. Related articles Can I use the RIDGE for daily use? Do I need to remove the RIDGE seat fabric to attach an infant car seat or Bassinet? Can I attach a bassinet to the RIDGE? Can you use a seat pad to protect vehicle seats?