Go for a full size up. I have high arches, the flyknit material molds around it.

Nike InfinityRN 4 Blueprint
Women's Road Running Shoes
Sold Out:
This product is currently unavailable
Maximum cushioning provides elevated comfort for everyday runs. Experience a soft, rocker-shaped platform made with new ReactX foam underfoot, and an ultra-comfortable collar and tongue for a snug feel. Plus, a water-resistant membrane was added to this version to help keep you dry.
- Colour Shown: Multi-Colour/Multi-Colour
- Style: HJ6649-900
Nike InfinityRN 4 Blueprint
Maximum cushioning provides elevated comfort for everyday runs. Experience a soft, rocker-shaped platform made with new ReactX foam underfoot, and an ultra-comfortable collar and tongue for a snug feel. Plus, a water-resistant membrane was added to this version to help keep you dry.
Innovation is our inspiration
Bill Bowerman, Nike's original innovator, put our blueprint in place. He inspired the Blueprint collection design details, like the speckled Swoosh logo and sketches of feet on the insole. They remind us of where we've been as we keep moving forwards.
Key features
- The updated Flyknit upper and a water-resistant membrane help keep you dry
- New ReactX foam in the midsole for extra cushioning
- A Waffle outsole for durable traction on the roads
- An ultra-comfortable collar and tongue for a soft, snug fit
- What's new? New ReactX cushioning for even more comfort, and a revamped upper and wider toe box.
Product details
- Weight: approx. 281g (women's UK 6)
- Heel-to-toe drop: 9mm
- Not intended for use as personal protective equipment (PPE)
- Colour Shown: Multi-Colour/Multi-Colour
- Style: HJ6649-900
Size & Fit
- Fits small; we recommend ordering half a size up
- Size Guide
Reviews (2)
Reviews (2)
5 stars
Size up
Olive942511757 - 21 Dec 2024
Comfortable, nice design.
Jaime - 05 Sept 2024
Absolutely love these! I own several pairs of infinity 3’s, but switched over to inform 4’s. I own 3 pairs including a beautiful custom designed blue and pink pair. (Well worth it for the extra $30, and they are shipped straight to your door!).

Nike InfinityRN 4 Blueprint