Place the measuring tape at your natural waist, the narrowest part of your torso.
Place the measuring tape around the fullest point on your hips.
Use the chart below to determine your size. If you’re between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit. If your measurements for chest and waist correspond to two different sizes, order the size indicated by your chest measurement for tops and your hip measurement for pants.
*Looking for the inseam length? Please refer to the product page to find out.
Our three different fits - slim, regular, and relaxed - ensure that when worn together, layers move and breathe like a single garment.
A snug, close-to-body fit for low bulk layering.
Neither snug nor loose - garments that are worn solo or over other layers.
Air permeable Pertex® Quantum Air nylon fabric for breathability and optimal comfort in all conditions, Cool-Lite™ brief liner for comfort in warm to hot conditions, internal Cool-Lite™ lined waistband for faster wicking and comfort, waistband with internal drawcord for adjustability, zippered back stash pocket, power mesh back hip pocket, inseam: 12.7cm/5", size L, Icebreaker reflective heat transfer logo
Get ready for race day and beyond with the Impulse Running Shorts, designed for optimal comfort in all conditions. Made from Pertex® Quantum Air nylon fabric, which has an open weave for breathability as well as wind-resistance, you can stay comfortable for longer, whether you're hitting the trail or pounding the pavement. The Cool-Lite™ brief liner keeps you cooler as the temperature rises, and the adjustable waistband, lined with Cool-Lite™, wicks away moisture and adds to the comfort levels, so the only thing you need to worry about is smashing that personal best. There's also a secure zippered back pocket and power mesh side pockets for quick access to nutrition or other small items.