ION and SQlabA new sizing system for knee pads – three models

Josh Welz

 · 25.07.2026

Arcon Lite: A lightweight sleeve-style model with protection class RE ZRO Level 1, designed for longer trail and enduro rides. Price: 89.99 euros.
Photo: SQlap

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The manufacturers ION and SQlab are introducing a new sizing system for knee pads which, for the first time, takes into account not only leg circumference but also body height.

​A key factor in the protective effectiveness of protective gear in cycling is a correct fit. If the protective gear slips out of place under strain or during a fall, it ceases to fulfil its function. Conventional size charts for protective equipment are generally based solely on the circumference of the limbs. The accessory manufacturers ION and SQlab have now revised this approach for their product ranges.

Height as a second basis for assessment

The newly introduced system, called ‘Adaptive Sizing’, adds a further dimension to the usual standard sizes (S to XL). Whilst the circumference of the leg continues to determine the width of the protector, the length of the protector is now defined by the wearer’s overall height. According to the manufacturer, this differentiation is intended to better accommodate the varying body shapes and leg lengths of people with the same thigh circumference.

SQlab draws on its expertise in the field of ergonomics. To determine the correct size, a standard measuring tape or a specific template provided by the manufacturer can be used. In addition to the dimensions, the geometry of the integrated protective padding has also been adapted to ensure a better fit around the knee joint during movement.

An overview of three product variants

The new fit system is primarily used in three models of knee protectors, which differ in terms of their intended use and protection class:

  • ARCON Lite SQ Knee Pad: A lightweight sleeve-style model with protection class RE ZRO Level 1, designed for longer rides on trails and enduro routes.
  • K-Pact SQ: A more robust protector featuring a strap-and-sleeve design and a RE ZRO Level 2 protective pad, designed for use in enduro and downhill riding.
  • K-Pact Zip SQ: It builds on the protective properties of the K-Pact SQ (Level 2), but also features a side zip (‘Quick_E Zipper’) to make it easier to put on and take off.

The facts about the new models

ARCON Lite SQ Knee Pad

  • Type: Lightweight sleeve pad (RE ZRO® Level 1)
  • Application: Trail & Enduro
  • Price: 89.99 euros >> available here

K-Pact SQ

  • Type: Robust protector with a strap-and-sleeve design (RE ZRO® Level 2)
  • Application: Enduro & Downhill
  • Price: 119.99 euros >> available here

K-Pact Zip SQ

  • Type: Level 2 protector with side zip (Quick_E Zipper)
  • Application: Enduro & Downhill
  • Price: €139.99 >> available here

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Josh Welz

Josh Welz

Editor-in-Chief

Josh Welz studied sports journalism and, as editor-in-chief, shapes the journalistic direction of BIKE. In 2016, Welz picked up on the e-trend and developed the title EMTB. Accordingly, he likes to move between worlds. However, as his enthusiasm for crisp trails is greater than his training diligence, the pendulum often swings in the direction of "E".

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