About 19.5 head circumference and 8.25 tall, after blocking. Will stretch to fit up to 23 inch head circumference
From Lace Style:
For the most part, lace patterns do not make insulating fabric and are rarely considered appropriate for warm winter hats. But by layering a decorative lace pattern over dense stockinette stitch, Mona Schmidt found a way to make this hat both lacy and warm. Mona worked the layers in contrasting but coordinating colors--orange and red--and experimented with lace patterns until she found one with plenty of large eyelets to reveal the solid layer underneath.