The Chase Boa® is a boot that offers a more responsive and professional level fit than our other Boa® fit system boots. The Chase Boa® is equipped with the durability and grip for all-mountain adventure, while the fit is upgraded with the comfort and support provided by the Cloud 9 Liner and Armored Spine to keep you out longer.

• Flex: Flex Rating– 8 (1 Soft - 10 Stiff)
  
  
• Fit: Armored Spine– Nitro uses an anatomically-shaped and 3D-molded heel reinforcement to provide even boot flex and long-lasting heel fit. Flex Link Design – A flexible panel at the ankle between the upper and lower shell ensures an even-flexing, responsive boot without bulk.
  
  
• Liner: 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 lifetime heel fit, while the clutch tongue makes boot entry and exit easier. ILS Liner Lacing – The ILS system uses a lacing harness to snugly wrap around the liner and secure it in the shell for a precise fit. Engineered ILS laces provide less friction and have a Dyneema® core for added strength. RE/LACE Liner Locker – From the innovators at Nitro R&D comes the RE/LACE liner locker, providing easy adjustment of your inner boot lacing without having to untie your boot.
  
  
• Lacing System: Dual Zone BOA Fit System– This zonal fit system allows for a precise fit and tailored foothold. The system can be loosened or tightened effortlessly with the turn of the two BOA dials. 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.
  
  
• Footbed: Dual Density Ortholite® Footbed– The world's leading supplier of open-cell foam insole technology provides a dual density footbed for support and comfort with an anti-microbial, moisture-wicking technology for drier, less odorous experience. EVA Midsole – Used on all boots with rubber outsoles, the EVA midsole reduces the overall weight and provides cushioning and thermal insulation.
  
  
• Sole: Vibram® ECOSTEP™ Outsole– Vibram grip and traction with an eco-friendly approach. The rubber scrap generated by Vibram's production process is recycled to produce their ECOSTEP™ compound, made with up to 50% recycled rubber. Air Dampening – Nitro's trusted AIR suspension technology sucks up the energy from hard landings and keeps your heels from getting bruised without compromising response or control. Therminator Shield – This thermal layer between sole and liner will reflect your body heat and keep your feet warm all day.