“140g” is an attention-grabbing specification. For MIRO NUDE 2, it needs a qualifier: 361 reports approximately 140g per shoe in size 41. It is a manufacturer figure for one reference size, rather than a measurement of every pair on sale.
First, make the weights comparable
When comparing two listings, check whether each number refers to one shoe or a pair, and whether both use the same reference size. A larger shoe and a smaller shoe are not an even comparison. Keep a missing reference size visible in your own notes rather than treating the numbers as directly interchangeable.
For this model, our photographs show the actual colourway alongside outsole and heel views. Those images help identify the product, but they cannot verify its mass. RunningArea has not weighed or run-tested these pairs.
What a controlled experiment tells us
In a 2016 study by Hoogkamer and colleagues, 18 male runners capable of running 5km in under 20 minutes completed treadmill testing and 3000m time trials. They wore control shoes and identical shoes with 100g or 300g added to each shoe. Added mass increased metabolic cost and slowed time-trial performance.
The useful distinction is that the researchers changed the mass while keeping the shoe design the same. This supports taking weight seriously when assessing a shoe. It does not give a shortcut for predicting your time in two different commercial models, where cushioning, geometry, stiffness and fit may also differ.
Why the lightest listing is not a complete decision
The experiment did not test MIRO NUDE 2. Its participants, added loads and 3000m trials also do not represent every runner or marathon scenario. Applying its results as a personal race-time calculator would go beyond what was measured.
Use a weight figure as one item in a product comparison. Keep the model number, reference size and construction beside it. Then check the available size for your chosen colour. A smaller advertised number does not resolve whether that shoe fits your foot or suits the running you intend to do.
See the MIRO NUDE 2 product page for matching colour photographs and size references. If the similar names are causing confusion, our MIRO model-number guide separates NUDE 2 from SL before you compare their specifications.
Edited from manufacturer information and the cited study abstract, checked 5 November 2026. This is a research-informed buying guide, not a RunningArea performance review.