The Under Armour Cold Gear Reactor Insulated Men's Vest in size Medium offers a loose fit for added comfort. Made of polyester with a blended fabric, this full zip vest features a mock neck construction and ribbed hem for a secure fit. It is designed for winter and fall seasons, providing insulation with quilting that traps heat. Additionally, it is water-repellent, breathable, and has hand pockets for convenience. This versatile piece can be worn for travel, activewear, casual outings, or workwear, making it a practical choice for outdoor activities or sports.