Measured
in both.

KGKM makes equipment for athletes who count both kilos and kilometers. The first product is S-01, a performance sock for races that mix running with sleds.

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Tests published
0
S-01 status
In development
Page updated

Product

S-01 performance sock

In development. Nothing here is for sale yet. This is what we are building and how each part will be tested. Results fill in as tests are run.

S-01 design targets and their test status
What we are building How we will test it Result
Grip print under the forefoot Pull test inside the shoe under 20 kg (TEST 001) Not measured yet
Grip that survives washing The same pull test after 30 washes Not measured yet
No hot spots over 8 km Wear test at race distance Not measured yet
Padded zone for the ankle timing chip Fit check with a chip strap Not built yet

Test log

Every test, with its method

TEST 001 In-shoe slip

Not run yet

How much force does it take before a foot slides inside the shoe? We will measure it for a regular running sock, a grip sock when new, and the same grip sock after 30 washes.

  1. Clamp a running shoe to the bench.
  2. Put a foot form wearing the sock inside the shoe, with 20 kg on top.
  3. Pull the foot form forward with a digital force gauge.
  4. Record the force when it starts to slide. Repeat 5 times and average.

The setup follows the friction test in a 2022 study of grip socks in the Journal of Sports Sciences.

What this test will not show: race times. We have not measured them.

How we work

Three rules

Numbers first
Every claim comes with a number and a unit.
Only what we tested
We publish the method, and we say what we did not test.
Metric
Kilos and kilometers, because that is how the races are measured.