Ripple Brim Preemie Hat
This little hat is distinguished by its simple ruffled brim (with a bit of slip stitch detail at the turn to the body for strength) and subtle crown shaping. Otherwise it is a basic stockinette hat - very quick and simple.
A version of this hat for adults in three gauges is available as the Ripple Brim Chemo Cap. Proceeds from sales of that pattern support the UNC Cancer Hospital.