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Atomic·Ski boots·Racing ski boots

Atomic Redster STR 1 LC

Race boot with a narrow last and flex 70, built for young racers pushing their limits on piste.

451 €
1Size
451 €
  • Delivery in 2–5 business days
  • 30-day returns
Ski expert
Not sure about the size? Chat with a ski expert, or call +46 370 33 97 70.
Narrow last
Fit
Narrow last delivers an aggressive, responsive feel in every turn.
Flex 70
Flex
Delivers direct response through turns and quick reaction at speed.
Memory Fit
Fit
Shell and liner can be molded for a custom, pressure-free fit.

About Atomic Redster STR 1 LC – Racing ski boots

The Atomic Redster STR 1 LC is a ski boot developed for skiers who demand a precise fit, maximum control, and efficient power transfer. With a narrow 91 mm last and a race-inspired fit, it offers an aggressive and responsive ride for those who want to push their limits on the slopes.

The boot is equipped with Memory Fit technology, which allows for customization of both the shell and liner for a tailored fit that eliminates pressure points and optimizes comfort. The low cuff design, Low Cuff (LC), is specifically designed for smaller skiers and provides a more ergonomic and balanced feel.

With a flex of 70, the STR 1 delivers a direct response in turns and excellent edge grip. This makes it perfect for skiers who want precise control and quick reaction at high speeds. The advanced World Cup Gold Low Liner contributes to a tight and comfortable fit, while providing the stability required for race-oriented skiing.

The Atomic STR 1 LC is the choice for those seeking a high-performance ski boot with a tight fit and unbeatable response. Whether you're racing or just want maximum precision on the slopes, this model is built to deliver the performance you need. Experience the feeling of total control with the Atomic STR 1!

Atomic Redster STR 1 LC, Specifications

  • Last: 91 mm
  • Flex: 70
  • Weight: 1837 g
  • Junior
  • Low Cuff
  • World Cup Gold Low Liner
  • Alpine Norm ISO 5355 - Type A

Fit & last

The last is the boot’s width across the ball of the foot. 100 mm is a medium width and suits most people. If you have a wide foot or high arches, we can spot-heat the shell in the store where it presses. The boot should feel snug when you try it on: your toes touch the front when you stand straight and pull back when you bend your knees. The liner packs out 3–5 mm during the first week, so a boot that feels comfortable in the store will be too big after a week. Always measure mondopoint — boot size has nothing to do with your normal shoe size.

Boot fitting

Buy your ski boots from us and you get free boot fitting for 1 year from purchase. That means we heat-mould the liner and grind or punch the shell at no extra charge. If we need to add materials or products, such as a custom-moulded footbed, you only pay for those — not for the work. You’re welcome to drop into our store at Isaberg, Sweden for up to 1 year after your order is placed.

Shipping & returns

Delivery time: 2–5 business days to Germany, from our warehouse in Hestra, Sweden. If the boot doesn’t fit right, free boot fitting is included for 1 year from purchase. Call +46 370 33 97 70 if you’re unsure before you order.

Atomic Redster STR 1 LC specifications

CategoryRacing ski boots
Skier levelIntermediate–Advanced
Flex70
LastNarrow (91 mm)
CuffLow Cuff (LC)
LinerWorld Cup Gold Low Liner
Weight1837 g
NormISO 5355 Type A
Often bought with Atomic Redster
Accessories that improve the fit
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Therm-ic Pocket Warmer 1
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Roupéz Mobile Yo-yo
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14 €
Therm-ic Toe Warmers
Therm-ic Toe Warmers
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5 €
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Choosing ski boots
Your ski boots affect your skiing more than any other piece of equipment — and they’re the hardest to choose online. Below we go through mondopoint, flex, last and what a boot fitting does.
Mondopoint — measure your foot, not your shoe size
Ski boots are sized in mondopoint, which is the length of your foot in centimetres. Stand with your heel against a wall, mark your longest toe and measure. That measurement is your size. Your EU shoe size is a poor starting point because it varies between manufacturers. A ski boot should feel snug when it’s new — the liner packs out 3–5 mm during the first week of skiing.
Flex and what the number means
Flex describes how much force it takes to bend the boot forward. 60–90 is soft and forgiving, 90–110 is an all-round level, 110–130 is stiff for skiers who ski hard, and above 130 is race level. The number isn’t standardised between manufacturers, so a 100 from one brand can feel like a 110 from another. If you’re heavy or ski aggressively, you want a stiffer boot; if you’re lighter or a beginner, you want a softer one.
Last — the width of your foot
The last is the boot’s width across the ball of the foot. Narrow is around 98 mm, medium around 100 mm and wide around 102 mm. A medium last suits most people. If you have a wide foot, a last that’s too narrow isn’t something you get used to — but the shell can be heat-moulded to make room where it’s needed.
Boot fitting makes the difference
Nine out of ten skiers have something adjusted at their first fitting. We analyse your foot, heat-mould the liner and grind or punch the shell where it pinches. A custom-moulded footbed gives better heel hold and less foot fatigue, and is the single biggest improvement you can make without changing boots. Buy your ski boots from us and free boot fitting is included (materials such as footbeds are paid separately), and you’re welcome to drop into the store for up to 1 year after your order is placed.
Socks and fit go together
A thin, knee-high ski sock with no seams across the ball of the foot is the right choice. Thick socks make the boot tighter without making it warmer — it’s the air inside the boot that insulates, and a boot that pinches gives you cold toes. Never wear two pairs.
Frequently asked questions
Ski boots are measured in mondopoint, which is the length of your foot in centimetres. Put your heel against a wall, measure to your longest toe and choose that size. The boot should feel snug when it’s new.
Ski expert
Didn’t find your answer? Call +46 370 33 97 70 or chat with a ski expert.
Atomic Redster STR 1 LC
Select size
451 €