Key Features:

• ILS Liner Lacing (Internal Lacing System) - Eliminating heel slip and keeping your liner secured in the shell
• Internal Ankle Support - Providing optional fit Improvement
• Power Tongue Stiffener - Allows for adjustable boot response
• Therminator Shield - Sole Insulation
• Response - 7.5/10

In-depth Tech Specs:

• TLS (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 features a compact size and low weight while maintaining reliability.
• Cloud 9 Liner - Ultra-lightweight pre-molded Thermacell material creates a straight out-of-the-box fit with unstoppable comfort. Nitro's signature latex heel pads provide a lifetime heel fit, while the clutch tongue makes boot entry and exit easier.
• RE/LACE Liner Locker - provides a secure and true liner lace lock every time, while also allowing you to easily (re)tighten your liner and foothold throughout the day (wherever you may find yourself on the mountain) without having to untie your boots outer lacing system.
• Ortholite® High Cup Dual Density Footbed - provides great control, heel support and comfort.
• Nitro Step On® Outsole - made with up to 30% recycled Vibram rubber, providing added durability and improved grip on wet and dry surfaces.