<p>The innovative Nuna AACE™ Booster Seat contains no added fire-retardant chemicals and breathable knit fabric for lasting comfort for even the longest of trips. Featuring three depth options for your baby’s growing legs, the 3-D growth system expands out and up, so it grows with your child. With armrests, customizable recline and side-impact protection (SIP) pods for added safety, this ultra-comfy seat is the best booster for car rides.</p> <h4>DETAILS THAT MATTER</h4> <ul> <li>Re-think the way your child rides with a seat that grows just like they do.</li> <li>With one-hand you can adjust the headrest height into nine positions.</li> <li>Seat sports 3 depths giving growing legs plenty of support and space.</li> <li>Energy absorbing foam and SIP pods take side impact security to the next level.</li> <li>Belt positioner aids in correct shoulder belt routing and minimizes user error.</li> <li>Ventilation panels within the shell and breathable (and washable!) knit fabric create a comfy climate for even the longest of trips.</li> <li>From fabric to foam and beyond, each element is smartly sourced to be both flame resistant and contain no added fire retardant chemicals.</li> <li>GREENGUARD Gold Certified to contribute to healthier indoor air, keeping you and your family safer.</li> </ul> <h4>KEY PRODUCT POINTS</h4> <ul> <li>Shoulder system works simultaneously with the headrest, expanding out while your child grows up.</li> <li>Converts from a high back to a no back booster.</li> <li>Lower anchor connectors allow for 8 position recline in high back mode & easily secure car seat to vehicle seat during use or transport.</li> <li>Easy to clean.</li> <li>Child Usage Requirements (with high back booster): 40 to 110 lbs or 38" to 60", suggested age at least 4 years old.</li> <li>Child Usage Requirements (without high back booster): 50 to 120 lbs or 38" to 60", suggested age at least 5 years old.</li> <li>Imported.</li> </ul>