Featuring an innovative design and industry-leading technology, the Britax Frontier 85 Combination Booster Seat (Rushmore) keeps your child safe and secure during car trips. Offering True Side Impact Protection and a patented, energy-absorbing Versa-Tether, this seat is engineered to grow with you child...

• Highest 5 point harness seat capacity allows your child to remain harnessed up to 85 pounds or in booster mode to 120 pounds
• True side impact protection distributes crash forces, shields from vehicle intrusion, contains the head and body and keeps the head, neck and spine "in true" or aligned, to limit injury
• Patented versa-tether introduces a staged-release tether webbing that anchors the top of the child seat at two points to minimize forward movement in a crash
• Quick-adjust head restraint and no-rethread harness easily adjust the harness shoulder height and head restraint without disassembling the harness
• Tangle free, 5-point harness with 10 harness height positions (up to 20") and three buckle positions for a snug and secure fit as your child grows