The liner is one of the most important parts of your snowboard boots. The liner is the inner part that goes inside the boots shell and ensures a comfortable and secure fit in your boots from the moment you put them on in the morning to the moment that you take them off in the evening. Liners vary from very basic foam stock liners to highly engineered heat moldable liners which hug your foot. You can see this progression in the image below which has a basic stock liner on the left, mid range liner in the middle and a top level performance liner on the right. Notice the increased amount of support, more streamlined shape and improved lacing and foot hold system.

Every boot will come with a liner that has been specifically designed for that snowboard boot shell so there is no need to choose your own one. Cheaper boots or entry level boots will usually have the most basic liner that a brand makes. This is because these boots get less use and require less precision than more advanced snowboard boots. Basic snowboard boot liners like the one on the left of the image above have unshaped foam and either a basic cinch lace system, or no internal laces at all. These are great for beginners and entry level riders as they offer comfort with ease of use. These boots are very easy and straight forward to get on and off.
Mid range boot liners like the one in the middle of the image above are found on a large amount of snowboard boots. These liners feature more performance oriented designs such as heel holds and strategic foam placement, without compromising on comfort. This gives a great balance which is favoured by a lot of riders. A lot of mid range liners will be moldable, usually by the heat of your foot as you ride. This moldable foam reacts to body temperature to expand and grip your foot for better performance.
High end snowboard boot liners like the one on the right of the image above offer the highest level of performance for more advanced riders who want precision and control from their equipment. These liners often feature additional heel holds, cinch lacing, velcro straps, strategic foam placements and more exotic materials. Most high end liners will be fully heat moldable. This means that the liner can be heated using a special boot molding machine. You then put your feet into the boots, tighten the lacing and stand in a riding position for a short period of time. The boots then mold to your feet to give a premium, custom fit. The heat molding process can be done by our trained staff in store. Alternatively you can ride in your boots straight away and the liners will mold to your feet after a couple of days riding.
Caring for your liners properly will help prolong the life of your boots. The biggest boot killer is wet liners. A wet liner which doesn't dry out correctly can damage the foam and cause it to deteriorate quicker than it otherwise would. We highly recommend that you remove the liners from your boot every night and never put your liners directly onto a heat source such as a radiator as this can damage the foam. When drying your liners you should place them away from a radiator or use a specific low temperature Snowboard Boot Drier.