My boys had these jackets in smaller sizes.  We were happy to find a larger size at a fair price.  The weight is perfect - warm enough for the fall and early winter, and light enough to layer under a shell or warmer coat.  The kids love how soft it is.

But here's the real reason why we like it.  It's actually important not to bulk up your kids in the car seat.  I believe it decreases the effectiveness in a crash.  Therefore, we use these as primary jackets.  If it's super cold out and we plan to be outdoors for awhile, we'll have them change to a warmer coat when they get out of the car.

I will continue to buy these in larger sizes.