Response Rating – 6 (1 Soft - 10 Stiff)

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

Cloud 3 Liner [Heat Moldable] – Nitro's most versatile liner, the Cloud 3 combines Thermacell material, molded latex heel pads and a Lo-Heel Frame into one lightweight, comfortable package.

DLS Liner Lacing – Directly connected to the liner, the DLS aslo features Dyneema® loaded low-friction laces on selected models for ultimate fit and comfort.

Latex Memory Pads – For a lifetime heel fit.

Lo-Heel Frame – More flex and a precise shape.

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.

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.

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

Anatomical Footbed – Provides shock absorption and comfort.

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

Rubber Outsole – A highly effective traction pattern, combined with an abrasion resistant high-grip rubber compound provides perfect grip, no matter if you're hiking up the park or down the stairs to the bathroom.