Sure, there are plenty of synthetic baselayers out there, but only the Arc'teryx Men's Phase SL Bottom uses fabric that controls moisture, truly transports moisture away from your skin, and flexes like none other. Slide into this bottom in order to layer up for cold-weather trail running, alpine climbing missions, and day-long ski touring missions into the backcountry.
Next-to-skin fit keeps this bottom as close to your skin as possible in order to aid moisture transport and help you stay warm
Gusseted crotch offers a supremely comfortable fit where it matters most, and the wide, laminated waistband has a soft finish on the side closest to your skin
Phasic SL fabric is hydrophobic in order to help transport moisture away from your skin
Phasic SL fabric uses a construction called mechanical stretch that relies on the weave of the fabric to flex, rather than elastic threads, which creates a stronger fabric with more dynamic flexibility
Phasic SL fabric incorporates polypropylene yarn with silver ion encapsulated into the fibers in order to provide odor control that lasts longer than chemical coatings
Phasic SL fabric is lightweight and has a smooth outer face that allows other layers to slide easily over its surface
Flatlocked seams and no side seams make for a comfortable fit, free of hot spots or irritating bulges