Snaps and pulls of fabric on inside back. See photos. The La Sportiva Windbreaker Hustle Vest is a stylish and functional activewear jacket designed for men. Made with 100% nylon, this medium-sized vest features a zip closure and a vibrant gray color with yellow trim. Perfect for outdoor activities, this windbreaker from the Hustle product line offers both durability and style, making it a versatile addition to any active man's wardrobe.