Dwyn Windbreaker Jr running jacket for girls and boys. The Dwyn running jacket by Errea is designed for runners looking for a lightweight yet functional garment: it is windproof, lightweight, and breathable. The smooth polyester fabric, reflective elements, and mesh underarm parts make it a practical piece of excellent quality, ideal for running and trail running, protecting against wind while allowing the skin to breathe. Thanks to the bright, shiny colors and reflective elements, you can train early in the morning or late in the evening without fear of the dark. Features: thumb openings at the sleeve ends, elastic sleeve cuffs and hem to enhance fit and technical properties of the garment, full-length zipper with chin guard, straight collar, reflective elements on the front and back, side pockets with zippers, breathable mesh panels in the most sweat-sensitive areas, semi-fitted cut. Cut: semi-fitted. Fabric: Polyester/Material.