Inspired by runners

Removable waistband The removable wide elastic waistband gives a more secure fit

5mm Impact Edges

For perfect fit

State-of-the-art technology can set you up for your fastest days on the hill

Arc'teryx Rho Bottom W - Print castelli Inspired by runnersLightweight, effective, and comfortable, the Rho is your base layer for low and medium output on cold days. The odour resistant Torrent microfleece fabric is made with wicking yarns and has an exceptionally soft brushed interior. Elastane fibres add stretch and work with the articulated patterning and gusseted crotch for freedom of movement. The waistband is designed for comfort and easy layering, and a smart thigh pocket stashes a smartphone.