whizrider, most compact, safe portable travel car seat ever - award-winning harness-style restraint system for carpooling, ride-sharing, 3-in-a-row, travel, and more. (blue/small) whizrider whizrider is the most compact, safe portable travel car seat option ever designed. the innovative child restraint system for kids is developed based on the latest information from the biomechanics and accident research field. itõs available in two sizes (small and large) for children between 3 and 10 years, 30 to 80 lbs., and 37.5 to 57 inches height. unlike booster seats, whizrider brings the shoulder belt down to the correct level. the steel safety clips keep the vehicle seat belt in the correct position (around the top of the shoulder, over the upper thighs), even when children wiggle or fall asleep. the leg loops prevent children from sliding forward and submarining (sliding under the lap belt), a common hazard with boosters. whizrider is fast and easy to put on. in the case of an impact, whizrider and the vehicleõs seat distribute the forces to minimize any potential injury. whizrider is crash-tested and exceeds the legal u.s. requirements for child restraint systems (fmvss 213 from nhtsa). it also includes a water-resistant protective carry bag that keeps it at hand in or clips onto your handbag, purse or backpack. whizrider was founded by two innovative, active dads on the principle that even spontaneous, unplanned travel with kids should be safe, stress-free and enjoyable. because whizrider is ultra-compact and lightweight ð about the size of a coffee cup and weighing less than one pound ð itõs so easy to bring along anywhere, anytime. in a world where new, modern forms of transportation are highly prevalent, whizrider gives families the freedom to seamlessly use any and all of them ð ride-sharing, taxis, car-sharing, carpooling and more. whizrider is the game-changer for family travel and the perfect supplement to your regular car seat for on-the-go. it goes where you goé