13" WIDE LAYBACK FULL CONTAINMENT SEATKIRKEYS ECONOMY CONTAINMENT SEAT IS DESIGNED FOR THE LOWER HORSE-POWERED SHORT TRACK RACER WHO WANTS THE ADDED SAFETY OF A CONTAINMENT SEAT AT A PRICE THEY CAN AFFORD. DESIGNED TO GIVE YOU MORE VALUE FOR YOUR MONEYDESIGNED FOR SHORT TRACK RACINGREPLACES YOUR ECONOMY OR STANDARD SEATMIG WELDED FROM .125" THICK 5052 GRADE ALUMINUMDESIGNED TO ACCOMMODATE ALL HEAD AND NECK RESTRAINTSHEAD & SHOULDER RESTRAINTS ARE ADJUSTABLE 1 1/2" VERTICALLYREINFORCED HEAD AND SHOULDERS FOR ADDITIONAL SUPPORTENERGY ABSORBING IMPACT FOAM ON HEADHEAD DESIGNED FOR EASY ENTRY AND EXIT FROM RACE CARBUILT-IN REINFORCED SHOULDER RESTRAINTSOPENINGS FOR 5 OR 6 POINT SEAT BELTSSEAT BELT OPENINGS HAVE RUBBER GROMMETSCONTOUR FOAM BOTTOM FOR COMFORT AND SUPPORTHOW TO MEASURE FOR A SEAT: IN THE SEATED POSITION, USING A STRAIGHT EDGE, MEASURE ACROSS THE HIPS AT THE WIDEST POINT. THIS MEASUREMENT IS THE WIDTH OF SEAT THAT YOU NEED