The R.A.D. is back this year and has gone through some improvement modifications to increse functionality. Slingshot has simplified the boot (as compared to previous models) with fixed liner and a new velcro upper zone. The R.A.D. still utilizes the integrated heel-holddown (HHD) system introduced last year, but functions more smoothly with only one lace in the system. These two features make entry and exit of the boot an absolute breeze. The boot is also form fitted to ensure maximum comfort and support while riding. Whether you are looking to ride in the park or on the boat this high performance boot is designed so you can spend more time riding and less time fiddling with a mess of laces.