- Relaxed Fit - Fly Front - Elasticated Waistband - Patch Pocket The Istanbul Animalia Button Front Lounge Pant is a handcrafted silhouette designed by our in house artisans. Reimagined in an exclusive limited edition print, our luxurious lounge pants feature a relaxed fit and button front design as an elasticated waistband seamlessly blends comfort with understated opulence.