I love these men's flannel pajama bottoms in navy (dinosaurs with Christmas tree). They correspond exactly to the size grid. The drawstring is handy to adjust the fit. Cute print and 100% flannel are comfortable weight. It's not super thick, but not too thin either. This is a good weight to relax at home in the winter. I like that there are pockets. Pants are well washed and dry, do not sit down and do not shed.