Arcteryx says about the Aptin Short Men's
Fortius™ DW 1.0 is a lightweight, 4-way-stretch durable double weave with DWR finish | Longer inseam length provides more coverage | Minimal, elasticized waist band with drawcord | Two hand pockets | Internal media pocket inside right hand pocket with media cord port | Invisible zipper pocket on right side | Laminated hems for minimal seaming and construction