American Giant Mens Classic Vest. Size medium. In great condition! Measurements: Pit to pit: 22" Length: 27" This American Giant Classic Vest in olive green is the perfect addition to any wardrobe. Made of high-quality, heavy weight cotton jersey fabric, it features a full zip closure and a band collar. The vest is designed for unisex adults in size small and is mid-length. It's perfect for everyday wear and also for travel, golf, hiking or a lazy afternoon at home. Machine washable.