Liners
Modern boot technology has facilitated the introduction of heat-mouldable liners which allows the boot liner to conform to your foot shape. Companies such as Nordica and Rossignol have also added neoprene in select boot liners in the area around the toes. This material allows the skiers toes to easily protrude through the front of the liner and remain unrestricted, which ultimately allows for a more comfortable fit.
Flex
One area in which ski boots vary is according to each manufacturers flex index. This translates to a varying level of control and power transferred to the ski. For those heavier or more advanced skiers, a boot with a higher flex rating (i.e stiffer) is appropriate. This allows more power to be transmitted to the ski, allowing for the maximum feel and control. Alternately, for those lighter or more conservative skiers, a boot which has a lower flex rating is more appropriate. Flex is however a subjective measure and should only be considered as an indicative measure as flex ratings vary between companies and there is no industry standard.
Technology
It is an exciting time with the further introduction of new technology. This year sees the introduction of Salomon's Custom Shell, that allow the boot shell to be heated and formed to your metatarsal contour for a personalised fit. This is achieved through the new patented Kaprolene™ material which easily deforms when warmed, but keeps its shape when cooled.
Other manufacturers including HEAD and Tecnica, have made their mark on the all-mountain boot market by offering a range of boots which fits the typical Australian foot type, accommodating a narrower heel profile, whilst still retaining a medium to wide fit in the forefoot area. Examples of these boots are the HEAD Edge series and Tecnina Dragon Series.