The bottom to pair with the top, the Arc'teryx Rho AR Women's Bottom is a midweight Polartec® Power Stretch® Pro fleece with a double wide waistband to smoothly and securely fit these around your waist and hips, a nice smooth exterior for sliding into your shells or insulated pants, and a brushed polyester interior for cozy and humidity management through speedy wicking. These are a 200 gram fabric, making them nicely opaque leggings for those chilly shoulder season runs, as well as a prime baselayer on cold winter days. Fit with a zippered thigh pocket designed to accommodate a smartphone these are multi-functional leggings designed to layer easily and be worn stand alone, depending on where the day is taking you. A nice elastane content makes these stretchy for easy movement and a trim fit which aids in making these thermally efficient. If you’re looking for a breathable leggings that gives you cooling air flow when worn on its own for high energy activities in cool weather that transition into a cozy baselayer for the depths of winter, these are your one and done versatile solution to the vexing problem of limited drawer and duffle space!