highest performance and the comfort of boa® lacing in a wide version . faster, higher, further - the burton ruler is built 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. with the dual-zone boa® fit system with coilerâ„¢, you enjoy 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 board feel without compromising comfort. b3 gel cushioning provides maximum cushioning, does not harden in cold temperatures and withstands repeated impacts without breaking.linerthe thermo-mouldable 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 systemdual-zone boa® fit system with coilerâ„¢ technology features two independent lacing zones that can be individually adjusted by turning a dial on the upper and lower part of the boot.