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The Air Cushioning unit in the midsole of the Nike Air Zoom Fearless Flyknit provides the wearer with a base that absorbs shock and reacts to movements. Protecting it from abrasion is a rubber outsole that also adds traction.
The upper is constructed using Flyknit, a lightweight, breathable material that has enough rigidity to provide support. In the second iteration of the Air Zoom Fearless Flyknit, this material is made smoother and more tightly woven to provide an even more close-fitting upper.
A clear rubber lines the bottom of the Air Zoom Fearless Flyknit. This material allows the Zoom Air technology to be visible. It is designed to be durable and capable of withstanding the wear-and-tear associated with indoor or outdoor workouts.
The outsole features a hexagonal tread pattern that facilitates multidirectional movements. Traction pods aggregate in the forefoot area to provide better traction during activities that require balancing or pushing off the ground. It also has two deep grooves with a zigzag pattern that allow the foot to flex naturally at the forefoot.
The Air Zoom Fearless Flyknit uses a full-length foam to deliver a stable base. This material is soft yet shock absorbent, and it has a firm nature to protect and support the foot.
The heel area features the Nike Zoom Air cushioning technology. It uses a combination of pressurized air and tensile fibers to give reactive cushioning. When the foot hits the ground, the tensile fibers compress to absorb the impact and then quickly return to the original shape. This reaction propels the foot off the ground in a speedy manner.
The shoe uses Flyknit, a micro-engineered fabric from the strategic combination of yarn and weaves. The construction of the material gives it its structure while also allowing it to stretch in some areas to accommodate movement. Designed like a sock, Flyknit is seamless and form-fitting.
This Nike workout shoe features a sewn-in tongue. It has an elastic opening to accommodate the foot as it enters and slips out of the shoe.
The lacing system functions more as a supporting structure than for closure. It primarily integrates with the Flywire cables, a proprietary feature found in the midfoot area, as well as around the mouth of the shoe. Pulling on the flat laces tightens the Flywire in the midfoot area to deliver lateral support. It also ensures that the collar sits closer to the skin to prevent accidental shoe removals during the workout.
A pull loop at the back of the shoe allows the user to put it on quickly and easily. It also prevents stretching the opening too much.