Nike Sportswear Tech Pack Men's Jacket, AR1578, Small. Light weight zip up The Nike Sportswear Tech Pack Jacket offers a new twist on a classic style. Made from soft fabric that lets you move freely, it uses different yarns to create a grid pattern for a modern, tech-inspired look. Yarns create a woven grid pattern. Signature Tech Pack alphanumeric code translates to "Nike." Standard fit for a relaxed, easy feel Side pockets 2-way zipper No flaws found. Like new Nike Size small Approximate flat lay 21 inch armpit to armpit 28 inch long #streetwear #nike #nikeperformance #sportswear #alpha