Men's Running Shorts On

Men's On 5" Lightweight Short

 in style BLACK


The On 5” Lightweight shorts are minimalist shorts that are ready for maximum speed.

Ultra lightweight and Swiss-engineered to make you feel fast, the short’s 5” length and four-way stretch materials are moisture wicking and give you more freedom of movement as you run to reach your goals. Comfortable from the very first try on, these shorts have a supportive inner brief and perforated mesh back that increases airflow while you work up a sweat.

These running shorts give you high-quality performance—they are made from PFC-free DWR that repels rain to keep you dry. In our On 5” Lightweight Shorts review, our testers loved the integrated zip-free back pocket and key loop that can store a phone, doggie bags, credit cards or keys.

Move seamlessly whether it is running around the track or on the trails in the On 5” Lightweight Shorts.


Size S M L XL
Chest (in) 35-37 38-39 40-41 43-44
Waist (in) 30-31 33-34 35-36 37-39
Hip (in) 35-37 38-39 40-41 43-44

How you can wear it

Pair the On 5” Lightweight Shorts with an On running shirt for an unbeatable running outfit.

Materials & Sustainability

Main fabric: 86% recycled polyamide, 14% elastane. Back mesh: 100% recycled polyester. Inner brief: 89% polyester, 11% elastane.

Approximately 70% recycled materials


Machine wash cool with like colors, tumble dry low. Do not bleach, iron or dry clean.

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