Response Rating | 8-9 (1 Soft - 10 Stiff) – 8 without the Power Tongue Stiffener, 9 with the Power Tongue Stiffener.

Flex Link Design – A flexible panel between upper and lower shell ensures an even flexing, responsive boot without bulk.

Cloud 9 Liner [Heat Moldable] – Nitro's flagship liner combines ultra lightweight Thermacell material with comfort and fit. Their signature latex heel pads provide lifetime heel fit, while the clutch tongue makes boot entry and exit easier. The Cloud 9 liner features an additional power strap for a snug fit on top and a triple density footbed with air bag for maximum cushioning and comfort. Heat moldable.

ILS Liner Lacing – Nitro's ILS system features a lacing harness firmly connected to the boot shell. This harness snugly wraps around the liner, securing it in the shell and providing precise lacing and fit. Nitro's engineered laces provide less friction and a Dyneema® core for added strength.

Power Strap – A velcro strap that is connected to the top of the shell of the boot to warp around the top of your liner to give you even more support and response from the top of the boot down.

TLS 5 Twin Lacing System – Easy lace engagement and release combined with the low abrasion of Dyneema® laces are the key factors of this highly reliable zonal lacing system. At the same time, the TLS 5 features compact size and low weight while maintaining the reliability proven by tens of thousands of days on the mountain. Although rarely needed, servicing and replacement parts (including the lace) are easier than with any other system on the market. Even using a standard shoe lace if you're in a pinch is an option only available on Nitro's TLS boots.

RE/LACE Liner Locker – Another innovation from your friendly developers at Nitro: The new RE/LACE Liner Locker provides easy adjustability of your inner boot lacing when your boot shell is already tightened (tied), by just pulling up on the lace handle. This allows you to (re)tighten your liner and foothold throughout the day (on and off the chairlift) without having to untie you boot.

Bail Out System – Designed to make unlacing the TLS system even easier. This pull tab placed in the middle of the TLS lacing system on the outside of the boot allows for effortless unlacing and record breaking speeds for taking your boots off.

Molded TLS Lace Handles – Even more comfortable with a perfect and smooth fit to you hand.

Ortholite® Triple Density Footbed – For ultimate control and cushioning.

VIBRAM® Outsole with ICETREK VIBRAM® Compound and D30® Dampening – Developed to provide improved grip on icy and snow surfaces, enhanced with supreme dampening properties from the new D3O® dampening pad. VIBRAM® ICETREK compound allows you to move more freely in cold climates, while the D3O® material provides the shock absorption and dampening you need for any conditions or riding styles. VIBRAM® ICETREK is usable in all seasons, it represents the best solution for everyday condition encountered from the Equator to the North Pole. The softness allows the compound to adhere to smooth surfaces and to support aggressive draws to improve traction on challenging terrain. In conjunction with sole design that utilizes small pointed lugs and a large supporting surface. VIBRAM® ICETREK with D3O® dampening allows you to move with confidence and comfort season after season.

Air Dampening – Nitro's trusted AIR suspension technology is now featured on even more models. The best shock absorbing technology on the planet sucks up hard landings and keeps your heels from getting bruised. This noticeable difference in ride and comfort does not compromise response or control

EVA Midsole – Used on all boots with rubber outsoles, the EVA midsole provides cushioning and thermal insulation.

Therminator Shield – This thermal layer between sole and liner will reflect your body heat and keep your feet warm all day.

Armored Spine – Nitro uses an anatomically shaped and 3D molded heel reinforcement to provide even boot flex and long-lasting heel fit.

Power Tongue Stiffener – For those looking for adjustable stiffness throughout the day or season, you can use Nitro's removable tongue stiffener to change between premium precision or more of a relaxed feel. From the steep and deep to the groomers you can customize your boot feel perfectly for your personal style.