Resin compositions composed of a polyolefin copolymer, a polymeric resin modifier, and a thermoplastic vulcanizate (TPV) are provided herein. A variety of sole structures for footwear, including plates, are provided including the polyolefin-based resin compositions described herein. Articles of footwear formed therefrom are also provided. Methods of making the polyolefin-based resin compositions, plates, sole structures, and articles of footwear and sporting equipment are also provided.