Nuna Tres lx (Brand new Display Unit)For big & small, for short & tall TRES seamlessly follows the transition of your child from toddler to big kid. This all in one seat is in it for the long haul, packed with pluses like side impact protection, adjustable headrest, expanding shoulder width, and harness storage. It goes from cradling your napping newborn to supporting your independent tween. In what feels like the blink of an eye. FEATURES & SPECS1) Premium i Size protection for your