The latest innovation in 3-in-1 car seat technology from safety 1st, the brand that invented the 3-in-1 category. The safety 1st grow and go™ arb air features best in class air protect side impact technology. This 3-in-1 car seat is built to grow with your child and provide superior protection every step of the way! It gives your child a safer and more comfortable ride with use at each stage; up to 40 pounds in rear-facing, 22-65lbs forward facing, and 40-100lbs as a booster seat. Rear-facing, the padded anti-rebound bar (arb) adds an extra measure of safety by preventing the car seat from over-rotating in the event of a sudden stop or crash. In forward-facing mode, remove the arb and grow and go secures your child in a harness up to 65 pounds. When your child is ready for booster mode, tuck-away the harness system and use the vehicle seat belt. The seat pad is a snap to clean with a snap-off, machine washable and dryer safe cover. No need to remove the harness or uninstall car seat. Features : -the latest innovation in 3-in-1 car seat technology from safety 1st, the brand that invented the category -built to grow with your child! -stage 1 - rear facing 5-40 lbs, and 19-36" -stage 2 - forward facing 22-65 lbs and 29-52" -stage 3 - belt positioning booster from 40-100 lbs and 40-52" -car seats are proven safer with air protect technology! -air protect patented technology has redefined the meaning of side impact protection - data has shown that air protect is superior in absorbing energy and transferring the crash forces away from your child's head versus common foam used in other side impact protection. -enhanced safety without the enhanced price. -padded anti-rebound bar (arb) to use in rear-facing mode prevents over-rotation in a sudden stop or crash. easily removes for forward facing use - anti rebound bar is typically a feature seen in premium priced car seats. -premium comfort - pillow inserts and padded harness covers keep baby cosy and snug -2 integrated soft grip cup holders hold drinks and snacksclearly visible booster belt path for easier buckling in booster modequickfit™ -harness system! ;simply rotate the levers to adjust the harness height and headrest together in 1 quick step. no need to uninstall the seat. -parent favourite! frustration-free harness holders prevent the straps from getting stuck under your child, making it easy to get in and out -more room in the front seat - smart recline design takes up less space in the back seat, leaving extra room in the front -easy fit - narrow base and 3-position recline makes it easy to get a good fit in your car -a snap to clean! machine washable and dryer safe seat pad, unsnaps and lifts away quickly from the seat frame for truly easy cleaning -one-click-connect universal anchor system (uas) equipped for quick attachment and removal -can be installed with vehicle seat belt or uasmeets or exceeds all canadian regulatory standards including cmvss 213, 213.1, 213.2 -certified for airplane travel in rear-facing and forward-facing harness modes -made with the highest quality materials and tested to structurally withstand our extreme canadian temperatures -maximum recommended: 100lb