Because they grow up so fast.  If you're reading this, you know all too well that choosing the right car seat is a tedious, scary, and super important decision. Why go through it more than once? Seriously, what parent has time for that? Thankfully, the Pria 3-in-1 may just be the only car seat you'll ever need. (Unless, that is, yet another little one comes along - but we'll cross that bridge when we get there.) see, the Pria 3-in-1 is built to grow with your child. And, most importantly, you can convert to new seat stages in mere seconds -  because trust us, growth spurts really do happen overnight. Bottom line? The pria's here for the long haul. 3-In-1 conversion that's crazy easy - switch from rear-facing (4-40 lbs) to forward-facing (up to 65 lbs) to booster seat (up to 100 lbs) With the touch of a button ClipQuik one-hand, magnetic chest clip makes buckling in and out struggle-free out-of-the-way spring assist harness system keeps straps in place, which means no more tangled toddlers cushions that are washer and, unlike most seats, dryer-safe (because who has time to line dry?) premium fabrics that keep kids comfortable and hold up wash after spill after wash after spill air Protect cushions with GCell foam protects your child head's head from side impact.