Atomic Redster STI 70 LC Ski Boot 2024


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While the Redster STI 70 LC is Atomic's most flexible race boot for junior ski racers, the only thing junior about this race boot is the cuff height, specifically sized for younger legs. The Slim Race Shell makes it easier to flex than other junior ski boots. The Redster STI 70 LC has a high-performance World Cup liner that creates a precise interface between shell and foot and works with the V3 Tongue System to totally fine-tune your fit. The V3 Tongue System allows you to select the tongue volume that best fits your body, for a dialed connection between your shin and the boot. This is a boot that’s ready to perform on the race course. Junior racers will have tons of confidence on race day and feel like they’re in the big leagues with the Redster STI 70 LC.

True Size Mondopoint 22

On our women's models, we offer a true shell size in MP 22 plus an appropriate liner construction.

Dual-Sided Cuff Alignment

Allows for lateral cuff angle adjustment to match the angle of the leg for increased comfort and control.


Polyurethane (PU) plastic delivers great skiing performance, suspension, and progressive flex.

Low Cuff - All Sizes

A 15mm lower cuff on all sizes within the size range.

World Cup

3D Stretch Toe Box

Asymmetrically shaped for left/right, 3D Stretch Toe Box allows for extra length and big toe comfort.

Full Microfiber Outer

35mm Velcro Strap

Simple and effective 35mm Velcro power strap.

7000-Series Aluminium Buckles

Your foot sits neutral/straight inside the boot.

Racing Sole (non-replaceable)

Solid plastic sole used in World Cup racing that delivers performance, stability, and precision.

Size Adjuster

Sizing inserts that can be added under the footbed to make any boot precisely a half size smaller.

Liner Laces

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