You just assume shorts let you move because there's less fabric—but that's not always the case. These were designed specifically for total mobility, with ultra-stretchy materials and a hem designed for how your legs move. Loose: Fuller cut for complete comfort HeatGear® fabric is ultra-soft & smooth for extreme comfort with very little weight Mesh panels for added breathability 4-way stretch construction moves better in every direction Material wicks sweat & dries really fast Encased elastic waistband with internal drawcord Open hand pockets Notched side-vent hem construction Inside leg: 23 cm No liner 90% Polyester/10% Elastane