2025 Atomic Redster STI 70 LC Ski Boot

2025 Atomic Redster STI 70 LC Ski Boot

Racer Price $425.00 $350.00 Save 18%

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Item:  24717A   (Only 1 Left)

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RACE PLACE has been authorized to offer special RACER PRICING on current season RACE SKIS, BOOTS and BINDINGS to all ski racers actively participating in USSA, FIS, College, High School, Nastar or Club Events.

**Discounted pricing is restricted to skis, boot and bindings.**

Determining Ideal Ski Boot Flex

The best method to determine the boot flex is by the athlete's weight. Adding 10-30 lbs to the boot flex results in the ideal weight range for that flex. This can vary based on an athlete's skill level and aggression. These are loose guidelines, and you should consult your local coach or ski expert for more specific recommendations.

Ski Boot Flex Chart

Racer Weight
Pounds		 Racer Weight
Kilograms		 Boot Flex
50-80 23-36 65
80-100 36-45 70
100-120 45-54 90
120-150 54-68 110
130-160 60-73 120
150+ 68+ 130-140

Determining Ski Boot Mondo Point (MP) Size:

Ski boots are sized with the mondo point system, which is a direct measurement of the foot in centimeters (cm). You may use the chart below to estimate your mondo point size, or measure the length of your foot in centimeters to determine your size. (Note: There tend to be slight variances between manufacturer's sizing and we recommend that you try on a similar brand or model before ordering to best determine the right size for you.)

Mondopoint Ski Boot Size Chart

Mondopoint (cm) Europe Men's Size (USA) Women's Size (USA) Kid's Size (USA)
18.0 28.5 ---- ---- 11.5
18.5 29 ---- ---- 12
19.0 30 ---- ---- 12.5
19.5 30.5 1 ---- 13
20.0 31 1.5 ---- 13.5
20.5 32 2 ---- 1
21.0 33 2.5 ---- 2
21.5 34 3 ---- 3
22.0 35 4 5 4
22.5 36 4.5 5.5 ----
23.0 36.5 5 6 ----
23.5 37 5.5 6.5 ----
24.0 38 6 7 ----
24.5 38.5 6.5 7.5 ----
25.0 39 7 8 ----
25.5 40 7.5 8.5 ----
26.0 40.5 8 9 ----
26.5 41 8.5 9.5 ----
27.0 42 9 10 ----
27.5 42.5 9.5 10.5 ----
28.0 43 10 11 ----
28.5 44 10.5 11.5 ----
29.0 44.5 11 ---- ----
29.5 45 11.5 ---- ----

Description & Features

The Redster STI 70 LC is Atomic's most flexible race boot for teenage ski racers, but the only thing junior about this race boot is the cuff height, specially sized for shorter, skinnier legs. The Slim Race Shell makes it easier to flex than other junior ski boots – combined with a World Cup Liner, this is a boot that's ready to perform on the race course. Give juniors tons of confidence on race day, and let them feel like they're in the big leagues with the Redster STI.

Features

  • Ski Racing Boot
  • 70 Flex Index
  • 93mm Narrow Fit
  • Slim Race Shell
  • Dual-Sided Cuff Alignment
  • Low Cuff | PU Shell
  • World Cup Liner
  • V3 Tongue System
  • 3D Stretch Toe Box
  • 16° Forward Lean
  • 35mm Velcro Strap
  • 7000-Seies Aluminum Buckles
  • 0° Shell Rotation
  • Racing Sole (non-replaceable)
  • ISO 5355 Alpine | Type A

Technical Info

V3 TONGUE SYSTEM

Customizable V3 Tongue System allows you to select the ideal tongue thickness to suit your needs. Choose between a Low Volume (LV) fit, Medium Volume (MV) fit and High Volume (HV) fit for the ultimate interface between shin and liner.

3D STRETCH TOE BOX

Asymmetrically shaped for left and right, the new 3D Stretch Toe Box takes first fit and customization potential to the next level. It is Big Toe Friendly construction that maximizes the liner’s available length allowing for a little extra stretch when important millimeters are required to achieve the perfect fit.