All Sportube cases are blow molded from high density polyethylene, which while being strong & durable is very ightweight. Each case is designed to protect valuable winter sports equipment from the abuses of airline check-in or shipping by UPS or fedex. The hard palstic shell offers superior protection over a soft bag and creates a shield around the equipment protecting its contents better than a nylon bag. The hard shell plastic doesn"t tear and is resilient to dings and bangs. There are no buckles, zips or permanently attached straps to get ripped, torn or broken. Therefore, it will hold up better and last much longer than a soft bag. Some airlines will only take liability for skis and boards packed in a hard case, soft bags may require a signed liability release. All Sportube cases are fitted with heavy duty rubber wheels making for an easy jouney from the car to check-in or car to hotel. Sportube cases are now bigger than ever. Our design and size has changed to meet recent changes in ski design and the Sportube now fits all ski/binding systems. Pulling the sportube through the airport or parking lot is now easier than ever thanks to the addition of the Easy Pull attachment point and the Easy pull Handle. Sportube case are supplied with a non locking TSA compliant wire case pin, however they can be locked for overseas travel or when shipping to the resort. Sportube can easily be strapped to any roof rack, protecting your equipment form road salt, dirt and grime. All Sportube ski & snowobard cases come with a 5 year limited manufacturers warranty.