Price: $160
Type: Road
Weight: 11.7 oz (M), 9.7 oz (W)
Flexibility: Very Stiff: Download Your Training Plan
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If the Saucony Triumph ISO 5 has one defining characteristic, it’s maximum cushioning. The midsole is among the thickest you’ll find in a neutral trainer, and Saucony markets the shoe as its best offering for runners who prioritize cushioning. The outsole is a layer of textured rubber that provides plenty of traction on the road and respectable performance on light trails. The upper’s design is minimal, with a forefoot of thin, breathable mesh layered over the ISOFit lacing system.
“The Triumph 5 had just the right amount of cushioning and provided a smooth ride,” reported one wear tester. “I've just picked up running again postnatally, and I actually had fewer bone and joint aches when I wore the Triumphs than when I wore my other running shoes.” The shoe feels heavy—an attribute wear testers also noticed—and its roomy fit didn’t suit We earn a commission for products purchased through some links in this article. But if you’re looking for a high-mileage trainer and don’t mind the heft of that deluxe Everun midsole, the Saucony Triumph ISO 5 is an ideal choice.
A Midsole Built to Last
The Triumph ISO 5’s stack heights (the measure of heel and forefoot thickness) are very high, a clear indication of just how much high-end cushioning is packed into this shoe. It’s not quite as thick as the Hoka Clifton 5—a maximalist shoe—but testers who ran in both shoes found common ground. “I loved this shoe. It has cushioning similar to the Clifton 5, but feels more like a normal running shoe,” one tester said. Midsole durability was also impressive; the shoe showed little wear during testing.
The Triumph ISO 5’s full-length Everun midsole looks and feels the same as its predecessor, the Triumph ISO 4, but Saucony actually added another 2 millimeters of cushion (the outsole is now 2mm thinner). All that foam puts the Triumph ISO 5’s weight at a hefty 11.7 ounces, 0.4 ounces heavier than the Triumph ISO 4 and around 2 ounces heavier than the Clifton 5 and the Triumph ISO 5’s popular cousin, the Saucony Ride ISO.
A Grippy, Durable Outsole
Part of the Triumph ISO 5’s significant weight comes from its textured crystal rubber outsole: There’s loads of traction, and testers had no grip issues running on roads and easier trails. And the substantial outsole, helped by the thick midsole and a cushy upper around the heel and ankle, translated into stellar durability during testing. Multiple wear testers expressed they would consider this shoe a great option to last an entire marathon season.
A Breezy, Roomy Upper
Saucony’s ISOFit upper technology consists of a massive tongue that nearly covers the entire forefoot, combined with a minimalist lacing system that provides greater flexibility and conforms better to your foot. The toe box material is a supremely thin, breathable mesh, and plush padding surrounds the collar.
Besides its weight, some wear testers criticized the Triumph ISO 5 shoe for its roomy fit. For We earn a commission for products purchased through some links in this article, the toe box was too large; their feet slid around inside the shoe (or they had to tie it so tight that it became uncomfortable), or the sock liner didn’t always stay snug against their feet. Wide-footed testers, on the other hand, loved its roominess.
All the Stats You Need!
Men’s
- Weight: Very Heavy | 11.7 oz
- Heel-To-Toe-Drop: High | 10.3 mm
- Runners seeking high cushioning should try slip on the Saucony Triumph ISO 5
- Heel Cushioning: Moderate
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- Energy Return: Most
Women’s
- oz M, 9.7 oz W
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- Flexibility: Very Stiff
- Forefoot Height: Very High | 25.5 mm
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- Energy Return: Most
We put each shoe through real-world usage and a battery of mechanical tests in our lab to provide you with objective—and exclusive—data. In addition to measuring a shoe’s weight, we measure sole thickness (everything that sits between your foot and the road), how well the foam cushions your stride, and the flexibility of the forefoot. All this is taken into account in our reviews of each shoe.
Jacob joined Runner’s World and Bicycling as an editorial fellow after graduating from Northwestern University in 2018, where he studied journalism. His work focuses mainly on news and service pieces for both audiences, with the occasional foray into longer feature work and product reviews. The Best Comfy Walking Shoes for Wearing Every Day The Best Comfy Walking Shoes for Wearing Every Day The 10 Best Hoka Running Shoes of 2025.
