- 100% Cotton - Relaxed Fit - Plunging V-Neckline - Rigid Denim - Removable Waist Tie The Denim Alika Istanbul Alchemy Belted Kaftan is designed by our in house artisans and masterfully cut by our manufacturer in Istanbul. A wardrobe staple reimagined, our belted kaftan is crafted with ridged denim and cut in a relaxed fit. Featuring a plunging V neckline and removable tie at the waistband to customise your most flattering fit.