Merrell Long Sky Shoe blurred over a black background

MTL Long Sky

A go-far racer to fly over
rugged trails

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MTL (Merrell Test Lab) is our innovation incubator where all our top products come to life. We test and refine right on the trail, using nature as our guide and elite athletes as our North Star to produce our best performance products.

MTL is our innovation incubator where all our top products come to life, using nature as our guide and elite athletes as our North Star.

MTL Long Sky: Go Far

Created to fly incredible distances over rock.

Merrell Long Sky Shoe
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MTL Skyfire: Go Fast

Perfect for fast rugged runs in the mountains.

Merrell Skyfire Shoe
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Go Far

The result of numerous rounds of
product testing on the feet of champions, the MTL Long Sky
is a go-far racer that's enabled our best trail running elites.

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Merrell Long Sky Shoe
  • PRONATION-
    CONTROL

    Medial post stabilizes tired legs and feet

  • LIGHTWEIGHT &
    TEAR-RESISTANT

    Rugged mesh upper for confidence and speed

  • STICKY GRIP

    Vibram® Megagrip rubber sole for traction on wet or dry rock

Ann Frost

Long Sky In Action

"It was great to work with Merrell to bring a performance shoe to the range. This shoe is agile, diverse and durable for moving fast through any terrain from forest floors, muddy wet rocks to high mountain ridges. It gives confidence in the ever changing weather. It will go the distance - short and fast or long and slow."
- Ambassador and Ultra Runner Anna Frost

Ragna Debats celebrating after a long race

Meet Ragna Debats

Merrell Test Lab Athlete

A collage of photos of the Merrell MTL Long Sky and Ranga Debats