NWT Mono B Space-Dyed Workout Leggings Size Small. These space-dyed leggings from Mono B offer supportive and stylish comfort for everything from working out to running errands. The high, wide waistband makes them easy to pull on and wear, and cross-cross details at the ankles add the perfect finishing touches. Slight stretch fabric. When laid flat and measured, waist is approximately 12 inches across. Inseam is approximately 24.5 inches long.