Best Lightweight Running Shorts for 2026: Tried and Tested
Running shorts are the piece of kit most people overthink the least and get wrong the most. I have lost count of the runs ruined by chafing, shorts riding up, or a waistband that slowly rolled down until I was basically holding them up. After years of trial and error, I have finally nailed what works and what to avoid.
The Three Types of Running Shorts Worth Knowing About
Split shorts are what you see on fast club runners and elites. The side split gives maximum leg freedom and airflow. They are the lightest and most comfortable option for speed work and racing, but the coverage is minimal — you need to be comfortable with showing some thigh.
V-notch shorts are the most common style. A small V-shaped cut at the side hem provides some extra movement without the full split. These are the versatile, everyday option that works for everything from easy runs to long efforts.
2-in-1 shorts have a built-in compression liner underneath. The liner prevents chafing and provides some support, while the outer layer gives coverage. They are bulkier than the other styles but eliminate the need for separate underwear or anti-chafe cream.
What I Run In
Nike Dri-FIT Stride 5-Inch — Best All-Rounder
These have been my default shorts for over a year. The Dri-FIT fabric genuinely wicks sweat well, the brief liner prevents chafing, and the fit is relaxed without being baggy. The 5-inch inseam hits a practical middle ground — enough coverage for the gym or coffee shop, short enough for proper running. A small zip pocket on the back holds a key or card. At around £35, the quality-to-price ratio is excellent.
Salomon Sense Aero 3-Inch — Best for Racing
When weight and freedom matter — race day, track sessions, tempo runs — these are what I reach for. At under 80g, you genuinely forget you are wearing them. The split hem gives total range of motion, and the fabric dries almost instantly. They are not the shorts for a casual Sunday jog (the coverage is minimal), but for performance running, they are superb.
On Running Lightweight Shorts — Best 2-in-1
On’s 2-in-1 shorts solve the chafing problem completely. The inner compression short stays put while the outer layer moves freely. The fabric is lightweight and breathable, and the waistband stays where you put it. They are pricier than most shorts at around £60, but the comfort on long runs is worth it if inner-thigh chafing has been an issue for you.
Decathlon Kalenji Run Dry+ — Best Budget Option
At under £15, Kalenji shorts from Decathlon are absurdly good value. The moisture-wicking fabric works, the fit is comfortable, and they hold up wash after wash. They lack the premium feel and advanced features of more expensive options, but for training runs where you do not want to worry about ruining expensive kit, they are genuinely hard to beat.
How to Pick the Right Pair
- Inseam length: 3-inch for racing and speed work, 5-inch for everyday training, 7-inch if you prefer more coverage.
- Liner: Built-in briefs or compression liners eliminate chafing. If your shorts do not have one, wear compression shorts underneath or use anti-chafe balm.
- Pockets: A small back pocket for a key or gel is useful. Shorts with phone-sized pockets tend to bounce unless the pocket has a secure closure.
- Fabric weight: Lighter is better for running. Heavy cotton-blend shorts absorb sweat and become uncomfortable quickly.
- Waistband: A drawstring or elastic waistband that stays put is essential. If it rolls or slips during a run, return them immediately.
Good running shorts should be invisible when you run. If you are thinking about them, they are not right. Try on a few pairs, run in them, and stick with what works for your body.
