The Lasso is designed with a huge focus on locking your heel in place and uses the BOA Tongue Tied system to accomplish that. For riders who have experienced heel lift or haven't found a boot that wraps their ankle well the Lasso could be the ticket. The medium stiff flex provides plenty of support but with enough give for the all-mountain riders who are spending all day on the hill. The Lasso Pro is a stiffer, more aggresive option with a similar fit that will give the hard charging riders a little more response.
How's the fit? The Ride Lasso fits alightly wider through the toes with a solid fitting heel pocket. Feel free to crank down on the side BOA for a more snug fit in the ankle, that dial specifically targets your ankle area.