Dynafit has designed an incredibly lightweight binding system which requires a slightly modified boot (see 'selecting AT boots'). These bindings literally weigh a fraction of other AT bindings (a mere 1 lb. 4 oz. for the TLT model compared to 3.8 lbs. for the Fritschi Explore). Dynafit bindings can make climbing uphill tons easier, and have a solid and reliable boot retention system for the way back down. They do require an extra step to switch from hike to ski mode and 'clicking in' can take some getting used to, but many skiers find this a small price to pay for faster climbing and reduced effort. The difference between different Dynafit bindings is mostly in weight. The toe mechanism is pretty similar between models, but the heel mechanism can have a variety of options from 3 different climbing heights (TLT Comfort) to an incredibly streamlined ultra lightweight version (TLT Speed Lite). The new TLT Vertical FT has a plate that connects the front and back part of the binding giving more torsional response to a lightweight package. The Vertical ST is similar in construction to the FT, but is composed of stainless steel instead of titanium.The TLT Speed Lite is incredibly efficient weighing in at a mere 275g-if you're into rando racing or 24 hour races, you should check these out. The TLT Comfort and the TLT Classic are our best selling Dynafit bindings offering three different climbing heights and all of the standard amenities. Keep in mind that Dynafit bindings do not include brakes, so if you need a stopping mechanism, make sure to add one to your order.

Fritschi has driven performance innovation in the other direction. Three years ago they introduced the Freeride Plus binding. Weighing in at 4 lbs. 8 oz., this binding is quite a bit heavier than a Dynafit, but has alpine style step in convenience and a DIN setting of 12. While still not designed to withstand endless terrain park sessions or jaw dropping airs, the Freeride comes very close to Alpine binding performance. Ski and walk modes can be switched easily with your pole, so you never have to step out of your bindings, and a ski brake comes standard. Fritschi also makes the Explore binding, which offers all of the features of the Freeride in a lighter weight package (3 lb. 8 oz.), and a din of 10 instead of 12.

Marker is releasing a new AT binding for the 07/08 season-- the Duke, designed for the modern freerider. With a max DIN of 16, this binding is really meant for cliff jumpers, huckers, and big mountain riders. Marker essentially took a 'freeride' binding and added a touring feature, and weighing in at 5.9lbs, it caters to those that are really hiking to get to the 'sickest' terrain.

Naxo bindings have now been available for several seasons. The Naxo offers convenince and retention features very similar to the Fritschi Freeride, but has a unique pivot system designed to make it even easier to stride uphill. They offer the nx21 (their 'high performance' model), the nx11 (reliable and lighter weight than the nx21), and the nx02, their lightest binding with a DIN of 10.