30-Day Wear Test
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Engineered knit sneakers for a difference you’ll feel the moment you slip these on. Breathable and lightweight with durability for everyday wear.

Item #: 335SIERRA

£90.00 £45.00


With a winning blend of technical features, the Sierra showcases an engineered knit upper for added breathability and a dual-density outsole, as well as 1st Ray Technology for added range of motion under the first metatarsal. Rubber elements add traction under foot.

  • Upper: Textile.
  • Footbed: Removable Mesh Covered EVA.
  • Outsole: Durable Rubber.

Our innovative podiatrist-designed FMT Technology provides superior orthotic support, relief and stability which helps realign the feet back to their natural position.

Research supports FMT Technology's success in reducing over-pronation, which can help relieve associated common aches and pains, such as heel pain (plantar fasciitis), knee pain and lower back pain.

Fit & Care

  • This style is not suitable for narrower feet.
  • Available in women's whole and half sizes 3, 4-7, 8

For the greatest comfort, we recommend wearing your new VIONIC footwear for just a few hours for the first few days to allow your feet to adjust to the new level of orthotic comfort and support.

Within one to two weeks you should find the product completely comfortable and supportive.

  • To clean, wipe with damp cloth and air dry under indirect sunlight only.
  • Do NOT submerge in water or use solvents to clean products.


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