The top distance running Spike in the Saucony line receives an update for the 2018 season. With changes from top to bottom, making it genuinely better.

The upper is a closed mesh with a smooth feel and conforming stretch to it, with the isofit lacing system securing the foot comfortably, all contributing to keeping it light. The midsole features of full-length wedge, contoured to position the foot efficiently, offering protection from the track in the longest races while not adding too much extra weight. The four spike plate extends over the entire bottom of the shoe but has much of its extra material removed, covering the lateral heel and supporting the medial sidewall, while offering a little extra flex to the shoe as well. The fit, performance, and efficient design make the Endorphin 2 a shoe for serious competitors.

UPDATED
Sizes: men 7-13,14; women 5–11,12
Weight: 4 oz (w/spikes, men’s 11); 3.1 oz. (w/spikes, women’s 8)
Spikes: replaceable; 4
Upper: closed mesh, synthetic leather, welded synthetic overlays
Innersole: sheet EVA
Midsole: CM-EVA
Outersole: textured Pebax spikeplate
Recommended for: 1500-10,000 meters, on synthetic surfaces