Gear Review: On Running Shorts 2021

The waistband and drawstring of the On Hybrid Shorts

With premium materials and a meticulous approach to design, it's no surprise that On makes some of the best running clothes on the market today.

All On apparel is designed to enhance your run. Minimalist designs get rid of distractions, and technical fabrics move with you, wick sweat and dry in a snap. Designers updated some of On's most reliable pieces for 2021 to provide an even better experience than before.

Fleet Feet runners tested some fo On's new gear, starting with the men's Hybrid Shorts and Lightweight Shorts. The 2-in-1 Hybrid pairs a detachable inner lining with a looser outer short, while the Lightweight Shorts deliver the lightest feel imaginable.

Here's everything you need to know about the newest apparel from On.

On Hybrid Shorts

A pair of the men's On Hybrid Shorts
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The On Hybrid short has been a favorite of Fleet Feet runners for a while, but the updated version is even better than before.

On’s new Hybrid Shorts maintain the same 2-in-1 functionality of the original: a lightweight outer layer paired with a snug inner lining. The outer layer has an athletic fit and stretchy feel, which provides a full range of motion, and the inner layer delivers gentle support.

Lots of running shorts have an inner lining, but the Hybrid short is different because it gives you options. The inner lining attaches to the outer short with a small button on each hip, so you can choose your experience. Wear the inner lining on its own for the slimmest fit, don the outer short for a breezier feel, or wear them together to get the best of both.

The attachment point of the On Hybrid Shorts

The outer short also works as part of On’s modular system. The same attachment points that anchor the inner short also work with other On pieces, like the men's Tights Long.

However you choose to wear them, the Hybrid Short has plenty of pockets. The outer layer has a drop-in pocket at each hip and a zippered pocket in the back, and the inner liner sports a snug pocket on each thigh to hold a phone or cards without bouncing.

“These shorts do everything,” says a Fleet Feet reviewer. “On dialed in the fit of both the outer short and inner layer, and there’s plenty of storage space so you don’t have to leave your phone at home.”

On Lightweight Shorts

The men's On Lightweight shorts in blue
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The secret to the On Lightweight Shorts is in the name. On eliminated distractions, so you forget you’re wearing them.

A polyamide-elastane blend fabric creates the front panel. It’s soft and stretchy, and it doesn’t ride up during your stride. The back of the shorts is a polyester mesh that’s as airy as it can get while still wearing clothes.

A light brief liner adds support. The quick-drying fabric keeps you comfortable when your run heats up, and it’s stretchy so it doesn’t limit your range of motion.

While the feathery weight and breathable performance shine in these shorts, it’s the waistband that really puts the shorts over the top according to one Fleet Feet reviewer.

“The waistband is perfect,” he says. “It wasn’t too tight or too loose on me. There is a drawstring, but I didn’t need to use it. The shorts sit perfectly on my waist, and they’re so light that they don’t try to slide down as I run.”

The Lightweight Shorts only have one pocket. Designers centered the pocket in the back of the waistband, which keeps your essentials out of the way. A key loop in the pocket adds a little more security, too.

Still not convinced? Don’t sweat it. Fleet Feet's return policy means you can test drive your shoes and gear without risk. If you’re not happy with the way your gear performs, looks or fits, we’ll take it back within 60 days. Plus, you’ll get free shipping on orders over $99 and free return shipping on all orders. That's our Happy Fit Guarantee

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