Columbia | Softshell Titanium Heat Men's Jacket

Brand: Columbia Sportswear Company Color: Black Size: Large Condition: Pre-owned and worn multiple times but still in great shape. No defects, stains, or holes. Material: 100% Polyester. Columbia titanium omni heat softshell jacket. Has multiple pockets and perhaps someone can inform me on the purpose of the side zipper. I'm not 1000% sure as to why it is there.