Nike Free 4.0 Flyknit - Women's
A single pieces of fabric forms the upper, so these road shoes mould to your feet like a second-skin. The 4.0 rating means they fall toward the barefoot end of Nike’s classic-to-minimalist continuum, allowing natural movement while providing support and protection as you built strength.
- Flyknit uppers are a single-piece of ultralight polyester that's incredibly strong, and has less waste than traditional cut and sew construction.
- Ultralight Flywire cables woven into the uppers connect to the laces, for supportive fit that follows your foot's movements.
- Midsoles are cushioning, supportive phylon, siped to allow foot strengthening flexibility.
- Hot knife siping on the soles to promote natural movement and provide additional flexibility.
- Outsoles have rubber pistons for cushioning and a rounded anatomic heel.
|Ideal for||Road running|
Some shoes include added motion control or stability features to help minimize pronation or supination, where the foot tends to roll inward or outward in a biomechanically imbalanced running position.
The approximate thickness of the midsole cushioning under the heel and the forefoot. A thicker heel and greater difference between heel and toe height tends to suit heel-strike runners, while forefoot and midfoot strikers may prefer a minimal drop between heel and toe cushioning.
The drop is the difference in height between the heel and the forefoot midsole cushioning. Traditional running shoes tend to have a 10mm drop or higher while minimalist style shoes are on the lower end of the spectrum.
Waterproof shoes and boots feature a waterproof-breathable membrane and a gusseted tongue to help keep your feet dry in wet conditions.