Rafael Ortiz

I model how a single convertible seat can span infant-to-booster years, accounting for growth, carpools, and vehicle changes.

Longevity is engineered through geometry—usable harness height, shell depth, and honest limits.

I plotted my nephew’s growth on a spreadsheet from infant bucket to preschooler, matching torso height to harness slots and shell depth. One convertible outlasted the rest across carpools and road trips. Seeing years of use unfold convinced me that honest geometry beats marketing timelines every time.

I prefer seats with taller harness heights, deeper shells, and supportive recline that delay premature booster transitions.