Shop Nuna travel system includes Nuna strollers and Nuna Pipa infant car seats. Nuna TAVO travel system with TAVO stroller, PIPA lite infant car seat, and PIPA series base included with purchase. Nuna Mixx travel system with a matching PIPA lite lx infant car seat and included ring adapter to make perfect travel system. Nuna Tavo with Pipa lite lx car seat, A perfect fit, taking baby from car to stroller all with just a click (no adapters needed!).