Diono Monterey® 2XT Booster Shipping October 2025

The original 2-in-1 booster seat with one of a kind, easy-adjust, separate height and width expansion. Transforms from a high-back booster to a backless booster as your big kid grows. Granted by the Insurance Institute for Highway Safety (IIHS), the BEST BET award is bestowed to car seats and boosters that provide good belt fit for typical ages approximately from 4 to 8 years old in almost any car, minivan, or SUV. The IIHS is an independent, scientific, and educational organization dedicated to reducing injuries and property damage from motor vehicle crashes through the education of consumers, policymakers, and safety professionals. 8 Years One Booster - for your big kid from 40 - 120 lb. It's all you will ever need. Easy-adjust - 11-position headrest that grows up with your child. Engineered for safety and comfort with 2 layers of Side Impact Protection. One of a kind - easy-adjust expandable backrest allows up to 6.5 in to grow with your big kid. With 2 layers of Side Impact Pro