The K2 Skis' Ally Zoom Viewer is having trouble loading. Please try again later...
Zoom in Zoom out ZOOM
TECH REVIEWS
  • In-Mold

    In-Mold

    In-Mold is the premium construction for ultra-lightweight performance helmets and is characterized by an EPS liner that is bonded to a lightweight poly-carbonate (PC) shell utilizing a distinct molding process. Unlike Hard-Shell construction, the lightweight EPS inner layer of the helmet is fused directly to the thin PC shell during molding. The result is a super light and protective envelope with minimal weight.
  • Passive-Channel Venting™

    Passive-Channel Venting™

    Channels on the inside surface of the EPS direct air-flow between your head and the helmet, removing moisture and excess heat; keeping you dry and comfortable all day long. Available on all K2 helmets.
  • K2dialed Fit System

    K2dialed Fit System

    The K2dialed Fit System creates a custom-fitting helmet no matter what your head shape. An ergonomically inspired three-point adjustable interface maximizes fit and customization with the twist of a dial. This allows for the ultimate convenience of being able to make fit adjustments on the fly. The end result of the K2dialed Fit System is customized helmet fit just for you. Available on Diversion, Virtue, Rival BC, Rival Pro, Rival, Ally Pro, Ally, Phase Pro, Phase, Illusion, Shadow and Clutch Rental.
  • Full-Wrap Liner System

    Full-Wrap Liner System

    This full-coverage, washable liner features a crown mesh that wicks moisture and breathes where you need it to while snugly cradling your head, creating the unmatched fit of a K2 Helmet. The Full-Wrap Liner System is seamlessly integrated with our K2dialed Fit System and K2 Baseline Audio, creating the ultimate user experience. No gaps equals better fit and more comfort. You don’t wear boots without socks, so why would you wear a helmet without a liner? Available on every single K2 helmet.

Ally

Lightest and Lowest-Profile

This item is currently unavailable through our website

Find at a shop near you

Size Chart

The K2 Ally is a super lightweight ski helmet for women who want an ultra low-profile helmet that looks as good as it fits. In-Mold construction keeps the Ally light and durable while Passive-Channel Ventilation keeps your head comfortable. The combination of the K2dialed Fit System and Full-Wrap Liner System creates the best, most customizable fit on the market while the Level 3 Baseline Audio System (Pro helmets only) will have you talkin’ and rockin’.

Sizes: S, M, L/XL
Weight: 394g
Helmet Construction: In Mold
Features: Passive-Channel Lining, K2dialed Fit System, washable Full-Wrap Liner System, alloy goggle clip