- 100% Cotton - Relaxed Fit - High Neck - Removable Belt Tie - Functional Pockets The Denim Alika Istanbul Alchemy High Neck Jacket is designed by our in house artisans and masterfully cut by our manufacturer in Istanbul. A wardrobe staple reimagined, our denim jacket is relaxed fitting and features a high neckline. Decorated with intricately applied crystal embellishments, it's finished with functional pockets and a removable belt tie for styling versatility.