Nike Giannis Immortality 4 Sizing Guide: Does It Run Small or True to Size?

Fit Notes

Nike Air Force 1

The Air Force 1 features a spacious, vintage leather lifestyle upper that naturally runs large and accommodating. In contrast, the Immortality 4 utilizes dense performance padding and a heavily tapered toe box that aggressively locks the foot down. To compensate for the intense loss of longitudinal clearance and forefoot volume, a full size increase is required when transitioning from this roomy lifestyle model.

Nike Giannis Immortality 3

Although sharing a visually similar design heritage and an identical 76.0 mm forefoot width blueprint, the Immortality 4 introduces thicker woven upper materials and heavier internal backing. This updated construction results in a noticeably tighter, more restrictive fit than its predecessor, necessitating a half-size increase to recover necessary length and toe box volume.

Nike LeBron Witness 9

The LeBron Witness 9 offers a slightly more accommodating textile upper and a forgiving full-length foam setup. Because the Immortality 4 utilizes an aggressive heel counter and thick rearfoot padding that forces the foot forward into the front of the shoe, players must opt for a half-size up to avoid severe toe compression and maintain adequate longitudinal space.

Nike Ja 1

The Ja 1 is notoriously snug and restrictive throughout its build. However, the Immortality 4 features even denser internal heel cushioning that further minimizes available length by shifting the foot forward into a rapidly narrowing toe box. Moving up a half-size ensures safer length clearance without over-elongating the overall footprint.