- 100% Silk - Relaxed Fit - Full Length - Elasticated Waist - Wide Leg - Crystal Embellishment - Silk Satin Fabric The Sweet Sacre Bleu Wide Leg Trouser With Front Pockets has a free-flowing shape that moves gracefully. The adjustable waistband and patch pocket details add polish. Inspired by the ornate interiors of Le Train Bleu, in the print a deep blue landscape is overlaid by gilded Belle Epoque detailing.