K2 Phase MIPS Helmet
K2 Phase MIPS Helmet
K2 Phase MIPS Helmet
K2 Phase MIPS Helmet
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K2 Phase MIPS Helmet

$169.95
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Phase MIPS Men's Helmet

Dial in the perfect fit with the Phase helmet, now available with a MIPS liner for increased protection against rotational forces. Subtle contouring and perfectly placed Active Matrix vents make this a go-to for riders who want comfort and tech without the bulk — the everyday lid that handles whatever the day throws at you.

MIPS Brain Protection System
Mips is a brain protection system integrated into the helmet that can reduce rotational forces from angled impacts to the head. The low-friction layer allows the helmet to slide relative to the head during the critical first 10mm of impact, redirecting energy and reducing rotational motion transferred to the brain.
Hybrid Construction
This unique construction features the best of both In-Mold and Hard-Shell builds. The primary In-Mold construction keeps it light, while the secondary Hard-Shell upper adds durability where it counts and resists dings from sticks, rails, and chairlift racks.
Active Matrix Venting
User-regulated Active Matrix vents let you dial in airflow on the climb or close vents for storm days — the system pulls air through the helmet and over the goggle area to fight fog and overheating.
360° K2Dialed™ Fit System
K2's signature 360° micro-adjustable fit dial wraps the head for even pressure and a glove-like fit. Twist once and you're locked in for the day.
Subtle Contouring
Clean, low-profile shell lines that work with any goggle shape — no awkward pressure points on the forehead or temples, no goggle gap on deep days.
Removable Ear Pads and Neck Roll
Convertible design with removable ear pads and neck roll — keep them in for storm coverage or pull them out for spring park laps and warmer temps.
Cycling Certified
Certified for cycling by the Consumer Product Safety Commission (CPSC) and the European Cycling Standard — one helmet for ski, snowboard, and bike park all year.

General

Gender
Men's
Category
Helmets
Best For
All-Mountain, Resort, Park, Backcountry, Bike Park
Certifications
CPSC, EN 1078 (cycling)

Construction

Build
Hybrid (In-Mold lower + Hard-Shell upper)
Protection
MIPS multi-directional impact protection system
Fit System
360° K2Dialed™
Venting
Active Matrix (user-regulated)
Liner
Removable ear pads and neck roll

Sizing

Sizes
S, M, L/XL
Size Reference
Measure head circumference 1" above eyebrows; match to size chart on K2 site for exact fit
Liner Cleaning
Remove the ear pads and neck roll and hand-wash the liner with mild soap and warm water. Air dry completely before reinstalling — trapped moisture causes odor and breaks down the EPS foam over time.
Shell Cleaning
Wipe the outer shell with a damp cloth and mild soap. Avoid solvents, petroleum-based cleaners, and aerosol sprays — they degrade the polycarbonate shell and can attack any integrated tech layer.
Storage
Store in a cool, dry place away from direct sunlight and heat sources. UV and trunk heat degrade the shell glue and EPS over a season or two. A helmet bag protects the finish.
Replacement
Replace the helmet after any significant impact — even impacts that don't show visible damage can compress the EPS. Most manufacturers, K2 included, recommend replacement after 3-5 years of regular use even without a crash.

Shipping Policy

Components:

All component items (wheels, drivetrains, suspension, brakes, etc.) ship within 4-7 business days of purchase.

Bicycles:

Complete bikes typically ship within 2–3 weeks due to build, tuning, and inspection times. You will receive tracking information as soon as your order is ready to ship.

 Gear & Apparel:

Outdoor Gear and apparel orders (helmets, jerseys, gloves, etc.) ship within 5-21 business days. Please reach out to us with the most up to date deliveries times as they vary per Manufacturer. 

Returns & Exchanges:

If you received the wrong size or wish to exchange an item, it must be returned in original condition—unused, uninstalled, and with all packaging intact.

For full details, please see our Refund Policy before initiating a return.

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Phase MIPS Men's Helmet — Fit + Tech Block
Fit + Tech Phase MIPS Men's Helmet
S – XL Men's K2Dialed · MIPS
📐 Find Your Fit
Size Head Circumference
S51 – 55 cm
M55 – 59 cm
L59 – 63 cm
XL61 – 65 cm

Helmets are sized by head circumference (cm) — wrap it just above your eyebrows, around the widest point of the head. If your rider is between sizes, size up for room to grow. The Phase fits men's head shapes. Compatible with most ski goggles — low-profile shape works with K2 goggles and most other brands.

🔩 Component Breakdown
K2Dialed Fit System
K2Dialed fit system — micro-adjustable dial for precise, custom fit. "Dial in the perfect fit" — quick adjustments for layering changes without removing the helmet. Even pressure distribution across the head.
MIPS Liner — Increased Protection
Available with MIPS (Multi-Directional Impact Protection System) liner for increased protection. Adds a low-friction layer inside the helmet that reduces rotational forces on the brain during angled impacts.
Subtle Contouring
Subtle contouring creates a sleek, low-profile look without aggressive shaping. Under-the-radar styling — clean lines that match any kit without standing out.
Active Matrix Ventilation
Perfectly placed Active Matrix ventilation channels airflow through the helmet for temperature regulation. Active venting keeps you cool on warm spring days without sacrificing warmth on cold chairlift rides.
In-Mold Construction
In-mold construction fuses the EPS foam liner directly to the polycarbonate shell — lighter weight and better impact dispersion than traditional hard-shell helmets. Premium look and feel with modern protection.
Goggle Compatibility
Compatible with most ski goggles — the Phase's low-profile shape works with K2 goggles and most other brands. No goggle gap issues when wearing a beanie or balaclava underneath.
Functional Fit + Supreme Comfort
Engineered for functional fit and supreme comfort — the Phase sits comfortably for all-day riding without pressure points. Dialed-in retention distributes pressure evenly across the head.
Mounting & Compatibility
  • Compatible with most ski goggles (low-profile shape)
  • Goggle strap retention channel for secure fit
  • Audio kit compatible (removable ear pads)
  • Standard ski/snowboard certification (ASTM F2040)
  • MIPS certification when MIPS liner selected
In the Box
  • 1× K2 Phase MIPS Men's Helmet (size as ordered)
  • 1× Helmet bag / storage sack
  • MIPS liner installed (since this is the MIPS version)
  • Standard ear pads installed (audio-compatible)
🏔 Rider Profile
Protection MIPS · In-Mold
Best For All-Mountain / Under-the-Radar Style
Discipline Alpine Skiing / All-Mountain
Fit System K2Dialed
🏔 Under-the-Radar Style, Dialed Fit — Subtle contouring + K2Dialed fit + Active Matrix ventilation + MIPS protection — "dial in the perfect fit." Supreme comfort for under-the-radar style.

Prepared with intention.

Every product is carefully inspected and handled by our team before it ships. From fit and function to final details, we make sure each piece is ready for the outdoors ahead—so you can focus on the experience, not the gear.

Passion drives us

At SpokeX Bike Co., bikes aren't just our business — they’re our way of life. As a rider-owned and operated shop, every decision we make comes from firsthand experience on the trail, at the race, and on the open road. We know what it’s like to chase a new line, push through the pain cave, and celebrate the ride — because we live it every day.

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