This is a vintage 1950s Vogue Ginny doll clothing set, possibly also fitting Mary Hoyer dolls. It includes a coat, ski shoes, poles, and a hand muff, ideal for winter playtime. The set is designed for the character Ginny and has a retro charm perfect for collectors of vintage doll items.
I’m not sure exactly what doll the ski equipment goes to. I did a Google search and came up with quite a few different ones. That includes two ski poles one the tip is broken one ski with attached black shoe and one hand, muff warmer if you have any questions, please don’t hesitate to ask!