30 inch: Material - 1200D Heavy Duty Polyester construction (1200 threads per inch) •Full size U-shaped main compartment opens with double zipper closure •Hideaway retractable handle system with push-button. •Two high impact inline tractor wheels •Two exterior zippered pockets for last-minute storage •Adjustable and Removable shoulder strap. •Dimensions: 30" H x 11.5" W x 14" D •Weight: 7 lbs. 36-inch Material - 1200D Heavy Duty Polyester construction (1200 threads per inch) •Full size U-shaped main compartment opens with double zipper closure •Hideaway retractable handle system with push-button. •Three high impact inline tractor wheels •Two exterior zippered pockets for last-minute storage •Adjustable and Removable shoulder strap. •Dimensions: 36" H x 17" W x 15" D •Capacity: 9180 cubic inches •Weight: 8.5 lbs. 42-inch Material - 1200D Polyester construction (1200 threads per inch) •Full size U-shaped main compartment opens with double zipper closure •Hideaway retractable handle system with push-button. •3 Inline Skate Wheels •Three exterior zippered pockets for last-minute storage •Adjustable and Removable shoulder strap. •7 Pockets- 1 Main Compartment With 3 Side Pockets •Oversize Check-In •Dimensions: 42" H x 17" W x 16" D (75 linear inches) •Capacity: 11,424 cubic inches •Weight: 11 lbs.