highest performance and the comfort of boa-lacing. faster, higher, further - the burton ruler is the boot for riders who dare to tackle big drops and long tours. the medium-soft boot supports your riding and pushes you to the next level. the ruler features technology and performance in an absolutely comfortable package at a fair price.outer bootthe 1:1 powerup tongue with a medium flex sits firmly between the boot and the tongue, eliminating the need for adjustment while riding. the robust, synthetic backstay between the boot and highback ensures direct power transmission and reduces fatigue. the est® optimised midsole shifts the centre of gravity downwards and improves the board feel without compromising comfort. b3 gel cushioning provides maximum cushioning, does not harden in cold temperatures and withstands repeated impacts without breaking.linerthe thermoformable imprint 2 liner with 3mâ„¢ thinsulateâ„¢ insulation is warm without being bulky and has an inner lace-up closure with velcro for a snug fit. the ultra-flat lock-up inner cuff runs across the forefoot and ankle for maximum heel stability and easy on and off. the fluffy lining is soft and offers a warm and comfortable entry into the boot.lacing systemthe dual-zone boa® with coilerâ„¢ and lockdown technology has two independent lacing zones including special heel tension, which can be adjusted individually at the same time by turning a wheel on the upper and lower part of the boot.