What is columbia 3 in 1?

Columbia 3 in 1 is a type of jacket that has three separate layers that can be worn separately or together. The outer layer is typically a waterproof or water-resistant shell, the middle layer is usually a thermal or insulated layer, and the inner layer is often a fleece or soft-shell layer. The jacket's versatility allows it to be worn in a variety of climates and weather conditions. The brand Columbia is known for its high-quality outdoor clothing and gear, and the 3 in 1 jacket is a popular choice among hikers, campers, and other outdoor enthusiasts.