A soft, microfleece layer is a must for any winter wardrobe—that''s why the Men''s Basin Trail III Full Zip exists. Columbia''s soft, winter-ready staple is the ultimate warmth provider and everyday style piece. You''re bound to be warm and worry-free in this fleece jacket crafted of our super-soft 100% polyester microfleece. It''s perfect for layering, allowing you to dial in your battle against the cold weather. Its tall collar is flexible enough to wear up or down, depending on your desired level of toastiness. This fleece jacket is available in a wide range of colors and sizes. Available in extended sizing. Regular Fit. To ensure the size you choose is right, utilize our sizing chart and the following measurement instructions: For the sleeves, start at the center back of your neck and measure across the shoulder and down to the sleeve. If you come up with a partial number, round up to the next even number. For the chest, measure at the fullest part of the chest, under the armpits and over the shoulder blades, keeping the tape measure firm and level.