Artist Tom Sachs has updated his Nike Mars Yard trainers, which are based on shoes worn by astronauts in space.

The first Mars Yard edition was created in 2012 for a New York exhibition of sculptures of space equipment, including exploratory vehicles, suits and control stations.
The shoes were based on Sachs' meetings with NASA scientists, and designed for a mechanical engineer at the agency's Jet Propulsion Lab who created the airbags used in the Mars Exploration Rover missions.

The trainers were made using Vectran, the same fabric the airbags are made from, and also incorporated details borrowed from lunar overshoes worn by astronauts.
However, after members of Sachs' New York studio started wearing the sneakers on a daily basis, they noticed signs of wear and tear. "It passed the abrasion test. It passed the strength test. It passed the folding test. It passed all the tests, but when we started using it, it didn't meet our expectations," said the artist.

The second edition of the Mars Yard trainers replaces the Vectran material with a polyester mesh that's more breathable and wicks away moisture, and the design uses a stronger stitch for the shoe's red loops. The upper includes undyed suede, and the tongue exposes its inner foam stuffing.
The first design featured protruding soles created for the desert, which have now been modified for more everyday environments, and the trainer also comes with a cork sole, included for sockless wearing.

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