Pitch-black and super skinny, Helmut Lang's 'Reflex' leggings will lengthen legs and stay comfortable all-day long. The elasticated waist means they're a hassle-free option for an early morning, while the matte finish will look just as good with a denim jacket and tee as it will with neutral-toned cashmere.

• Elasticated waist
• 91% Viscose, 9% Elastane
• Dry clean
• Designer colour name: Black