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

Rubber Outsole - A highly effective traction pattern combined with an abrasion resistant high-grip rubber compound provides great grip in a variety of conditions.

Cloud 5 Liner - • Pre-Molded Thermacell: for perfect out-of–the-box fit

• Re/Lace Liner Locker: for a snug and easy to operate closure

• Latex Memory Pads: for a lifetime heel fit

• Flex Toe: expands for custom toe box fit

• Solo Density Ortholite® Footbed: for zonal support

and dampening

ILS Liner Lacing - Nitro's Internal Lacing System (ILS) features a lacing harness firmly connected to the boot shell.
This harness snugly wraps around the liner securing it to the shell for precise lacing and fit.

RE/LACE Liner Locker - The RE/LACE Liner Locker provides easy adjustability of your inner boot lacing once your boot shell is already tightened by just pulling up on the lace handle.
This lets you re-tighten your liner and foothold throughout the day without having to untie your boots.

Heat Moldable - Nitro's liners are constructed from Thermacell material using Nitro specific casts and latex heel pads.
This ensures a long lasting fit and comfort without fatigue.
All Nitro liners can be thermo-molded for an even more custom fit.