Advice for Road Runners: If you're searching for extra support on your runs, the Nike Women's InfinityRN 4 Road Running Shoes could be great options. The Flyknit upper combines with ReactX foam to support your feet and ankles.

Underfoot Feel

The Nike InfinityRN 4 cushioning should feel both responsive and protective. That's because there's a thick layer of Nike's ReactX foam.

This foam also doubles up as support for your feet and ankles. Intentionally placed cushioning and tuned support offers more guidance.

A prominent curved heel-to-toe design should reduce the impact as your feet hit the ground. It also smooths out transitions from landing to take-off.

Upper Fit

The supportive experience extends from the midsole to the upper. This is down to the supportive Flyknit construction in the Nike InfinityRN 4 Road Running Shoes. A banded structure in the midfoot section improves the sensation of security.

While it's not visible in the images, a water-repellent toe area protects part of your forefoot from wet weather.

We recommend ordering a half-size up from your normal Nike running shoes size for the best fit. Nike has acknowledged that these have a snug fit. 

Ideal Run Type

We recommend using the Nike Women's InfinityRN 4 Road Running Shoes for slower paced runs. They should also be a good choice when you're running on tired legs. For example, if you have to run after a long day at work, the supportive construction might help reduce the load on fatigued muscles. 

Technical Features

• Approximate weight: 281 grams (based on a women's UK size 5.5)
• Drop: 9 mm

Sizing Advice

Shoe size is a personal preference and everyone's feet are different, but we want to ensure you avoid any pain or discomfort from bruised toenails, rubbing, blistering or pins and needles.

Your running shoes should have enough width to allow you to spread your toes and should have some space at the front (we recommend having a half to one thumb's width of space from the end of your longest toe to the front of your running shoes).

This usually means that your running shoe will be at least a half size bigger than your regular shoe size though this can vary from brand to brand.