Quick answer
Choose running shorts based on your primary surface: lightweight, breathable shorts for road running and more durable, feature-rich shorts for trail running. Consider fit, fabric, pocket layout, and whether you need insulation for cold-weather runs.
Road vs. trail: what changes in a short
Road running shorts prioritize minimal weight and maximum airflow because you’re usually on open, predictable surfaces. Trail running shorts need tougher fabrics, more secure pockets for snacks and gear, and often a longer inseam to prevent chafing against brush.
If you run both surfaces, look for a short that balances durability with breathability. A lightweight short with reinforced seams and a zippered pocket can work well for both.
Fabric and weather considerations
For warm and humid conditions, a ultralight fabric that feels like wearing almost nothing helps you stay cool and dry. The M's Wadi Shorts use a Liquid Rock fabric that is ideal for hot weather and high-output activities like trail running and yoga.
For cold-weather runs, consider insulated shorts that you can layer over tights or base layers. The M's Dunfri Shorts are designed with full-length side zippers and a durable outer material, making them easy to put on over pants for extra warmth during variable-intensity activities like toppturer or climbing.
How to choose running shorts in 5 steps
- Identify your primary running surface: Road runners should prioritize lightweight, breathable shorts with minimal seams. Trail runners need durable fabrics, a secure waistband, and pockets that keep items from bouncing. If you run both, a hybrid short with a reinforced seat and a zippered pocket works well.
- Choose the right length and fit: Shorter inseams (3–5 inches) offer more freedom of movement and ventilation for road running. Longer inseams (5–7 inches) reduce chafing on trails and provide more coverage. Try both to see what feels best for your stride. A too-long short can bunch up; a too-short short may ride up. Test with a few strides in the store.
- Match fabric to the weather: For hot weather, pick ultralight, quick-drying fabrics like Liquid Rock. For cold weather, consider insulated shorts like the M's Dunfri Shorts that you can layer over tights. Avoid cotton – it stays wet and causes chafing. Layering insulated shorts over tights gives you adjustable warmth without buying a separate winter short.
- Check pocket layout and storage: Road runners often need only a small zip pocket for a key or card. Trail runners benefit from multiple secure pockets for gels, phone, and a map. Make sure pockets lie flat and don’t bounce. Test pockets with your actual gear – a phone that fits in the store may bounce uncomfortably on a run.
- Consider built-in liner vs. separate briefs: Many running shorts come with a built-in mesh liner that provides light support and eliminates the need for underwear. If you prefer a compression short or have sensitive skin, choose a short without a liner and wear your own base layer. Built-in liners are convenient but can be less supportive for longer runs. Try both options.
Products mentioned
-
M's Wadi Shorts: The M's Wadi Shorts are made from Liquid Rock fabric (56%…), designed for warm and humid climates. The ultralight fabric gives a feeling of wearing almost nothing. This makes them a top choice for hot-weather road or trail runs where you want maximum breathability and zero weight penalty.
M's Wadi Shorts
-
M's Dunfri Shorts: The M's Dunfri Shorts have full-length side zippers and a durable outer material, designed to be worn over pants for extra warmth during variable-intensity activities. They are ideal for cold-weather runs or toppturer when you need to add or remove insulation quickly without taking off your shoes.
M's Dunfri Shorts
-
W's Pace Light Shorts: The W's Pace Light Shorts are part of the Pace series, designed for high-pulse activities. The focus is on how the fabric feels, the fit, and how the garment moves and sounds. These shorts are built for runners who prioritize comfort and performance during high-intensity road or trail sessions.
