The Nike Free TR 8 features a full-length rubber foam outsole. The unit is designed to be durable to withstand the wear and tear of high-intensity training. It features deep grooves and cutouts that facilitate flexion and expansion of the compound in every direction. It also serves as a shock-absorbing layer because of its soft nature.
The heel on this model is flatter and wider compared to its predecessor. This construction aims to deliver stability during exercises.
Such high-wear areas as the heel, the toe, and the ball are lined with an extra layer of rubber. This compound enhances the durability of the sole unit and increases traction.
The midsole of the Nike Free TR 8 is made of a soft foam. It is engineered to attenuate shock to keep the foot comfortable and free of any discomfort. The platform is created in a way that the sides near the heel are raised up. This wrap delivers stability during lateral movements. The Nike Free technology is also meant to give the wearer a barefoot-like experience with its lightweight and flexible nature.
This workout shoe from Nike sports a cleatie silhouette. This slip-on design allows for the quick putting on or removal of the trainer.
Since it has an attached tongue, the lacing system serves to provide a snugger fit. The laces integrate with the Flywire cables which reinforce the lateral support of the upper.
The upper is made of a lightweight mesh which ensures that the foot chamber is well-ventilated during rigorous training. It is also designed to be durable to hold up against abrasion during training but still pliable to allow natural foot flexion. The synthetic component forms an external heel counter that keeps the rearfoot steady during dynamic exercises.
Inside the footgear is a full inner-sleeve which provides a sock-like fit. This smoothens the inside by hiding the seams and prevents them from irritating the foot.
What helps to keep the foot locked down is the lightly padded collar. It also prevents chafing of the ankle area. The pull tabs are attached on top of the tongue and behind the collar to help users quickly put on the trainer.