The All-Mountain Freeski Boot Designed to Achieve Flex Perfection

The FS 01 100 is the all-mountain freeski boot designed to achieve flex perfection, power transmission, and shock absorption. The FS 01 100 is designed for those seeking both comfort and performance. It offers a more forgiving yet responsive feel.

The innovative hybrid Cabrio/Overlap construction combines the best of both worlds: the close fit and edge control of the overlap, and the progressive flex of the 3-piece. Paired with the patent-pending Phaenom Strap, the FS 01 100 provides rebound, shock absorption, and exceptional flex control. The elasticity of the strap generates tangible rebound through your turns, for increased power transmission, turn initiation precision, comfort, and predictability.

Designed for customization, the boot comes with three different inserts (flip chips) that allow forward lean angles of 13°, 15°, and 17°.

The sleek all-black design supports restoration and reuse of the boot and its parts. Each element of this product — from panels to buckles to straps and screws — is designed to be repairable and recyclable.

Details

Fit: Last: 102mm – A wider last intended for average to wider and higher volume feet.

Flex: 100 – A medium flex for advanced to expert skiers

Liner: Phaenom Liner – Self-molding foam - can be heated, but will form to your foot with use.

Recycled and Bio-Based Materials – The liner was designed to be as sustainable as possible without sacrificing performance.

Bio-Based Vibration Absorbing Outer Sole – The checkered print outer sole is designed to absorb high and low frequency vibrations coming up through the ski boot, making repeated landings more comfortable and reducing foot and leg fatigue throughout the day. The outer sole’s extra grip and design means it's tough enough to be worn alone at après, or on your journey to and from the ski hill. Made from a minimum of 50% bio-based content.

Calf Stabilizer – TPU plastic placed meticulously around the calf and shin area redistributes pressure to eliminate pressure points.

Phaenom x Lenz Insole – Developed in collaboration with Lenz and highly renowned orthopedic specialists. These premium pre-shaped footbeds provide extra support, comfort, and help prevent fatigue.

Shell Materials & Design: Hybrid Cabrio/Overlap Shell – The innovative hybrid Cabrio/Overlap shell features a distinctive and clean two-buckle design. It combines the best of both worlds: the close fit and edge control of the overlap, and the progressive flex of the 3-piece.

All-Black Design – The sleek all-black design supports restoration and reuse of the boot and its parts. Each element of this product — from panels to buckles to straps and screws — is designed to be repairable and recyclable.

Recycled Materials – Phaenom boots are designed to be as sustainable as possible without sacrificing performance.

Screws, Not Rivets – By using solely screws and no rivets, Phaenom gives riders the "right to repair." All boot parts are removable and replaceable and readily accessible.

Shell – Up to 30% recycled TPU (thermoplastic urethane), Cuff – TPU, Tongue – TPU

Stance: Adjustable Forward Lean – Three different flip chips are included, yielding angles of 13˚, 15˚, and 17˚.

Buckles: Oversized Buckles – Clean and functional design, 100% recycled aluminum.

Power Strap: Phaenom Strap – Provides superior shock absorption and a unique linear flex pattern from a single recycled material.

Bootboard & Footbed: Phaenom x Lenz Footbed – Heat moldable

Sole: GripWalk ISO 23223 Improved Walking Sole

Additional Features: Interchangeable Anatomic Spoilers, 2 volume adjusters, Flip Chips – 13˚ and 17˚ forward lean options

Specs

Ability Level: Advanced-Expert
Ski Boot Flex: Medium
Forefoot Width: 102 mm
Weight Shell: 1550g
Weight Liner: 550g
Liner Type: Semi-Custom
Flex Index: 100
Boot Sole Type: GripWalk (ISO 23223)
Number of Buckles: 2
Warranty: 2 Years

Size Table

Size	24/24.5	25/25.5	26/26.5	27/27.5	28/28.5
Boot Sole Length (mm)	285	295	305	315	325
Last (mm)	98	100	102	104	106

Awards New Schoolers

Fs 01 100 Ski Boots 2026

Remedy 130 Ski Boots 2027