Zappos.com is proud to offer the Columbia - Tech Trekker Jacket (Black) - Apparel: Trek into the elements without worry in this sporty Columbia jacket. ; Water-repellent nylon shell. ; Omni-Heat thermal reflective lining and 80 grams of insulation to help boost your body's heat retention. ; Dual chest pockets for added storage. ; Zip handwarmer pockets. ; Internal zipper media pocket. ; Headphone port makes listening to your tunes a breeze. ; Cuffs can be adjusted with snap closures at wrists. ; Mock neck. ; Front zip closure. ; Long sleeves. ; Shell: 100% Tactel nylon. ; Lining: 100% nylon. ; Insulation: 50% polyester, 50% recycled polyester. ; Machine wash cold, tumble dry low. ; Length: 26 in ; Chest Measurement: 36 in ; Sleeve Length: 33 in ; Neck Circumference: 20 in ; Product measurements were taken using size SM. Please note that measurements may vary by size.