Blue ribbed shells give this trio a look that is easy to spot on a carousel, and the finish hides the light scuffing that hard cases pick up. The carry-on takes 46 L for one to three days, the mid case 72 L, and the large one 95 L for a week away. Outside they measure 14.5 by 9 by 20.5, 16 by 10 by 24.5 and 18 by 11.5 by 27.5 inches, weighing 5.5, 6.5 and 8 lbs. Double spinner wheels and a telescoping handle keep each case rolling upright rather than tipping. X-shaped straps and a zippered divider inside separate clothes from shoes, and the three nest for storage at 19.5 lbs total.