Cortex 120 Zonal BOA — Men's (2027) Size (Mondo):24.5 the I/O MAG S is

the I/O MAG S is scaled down to fit smaller faces

Double-layer face foam with microfleece facing

Waterproof synthetic textile upper with 200g insulation

put them in an affordable design

Weight: 575g / Single Shoe

Cortex 120 Zonal BOA — Men's (2027) Size (Mondo):24.5 the I/O MAG S isThe 2026 K2 Cortex 120 Zonal BOA is a high performance, low volume mens ski boot engineered for aggressive skiing. It features TPU shell and cuff for performance and molds, dual zone micro adjustable BOA closure, a precise EliteFit Sport liner, and a stiff 120 flex. GripWalk soles and feature rich technologies like Energy Bolt Spine and SES Shims round out a boot built for precision, power, and comfort.