Columbia Red & Black Winter Insulated long sleeve jacket with hood zip & Velcro NWOT!!! Never been worn Purchase for my son but by the time we went on our ski trip at no longer fit him but I had already taken the tags off so as you can see on me it would fit up to a women's size medium a boys 18 to 20 is basically a boys XL and honestly a men's small Two front zipper pockets for your hands, one chest zipper pocket and rests. Are Velcro adjustable to keep cold air or snow out. Size 18/20 Boys and a Size XSnall to Small in men’s