But the best plastic boots allow enough forward flex to align bent knees with toes, with almost no flex from side to side. Most have machine-washable foam liners. Soft boots draw on the supple, tailored construction of day hikers while mixing in stiffer plastics for extra stability. Their softness means no blistery break-in period, plus they remain comfortable during long workouts. Softies are also lighter than plastic boots.
Lighter fabrics blow out faster.
Besides boot materials, there are two more variables to consider. Be sure the boot's shin cuff is high enough to keep you upright while allowing some forward flex. Most boots have snugging devices for extra support. Chassis dictates ride. As with a bicycle's tubing, a skate's frame material largely determines its feel.