They are made from 300 GSM cotton twill, a tightly woven fabric with a fine diagonal line. The cotton is BCI-certified. Twill holds its shape and looks sharper than knit fleece, so the joggers pass for smart casual trousers rather than gym wear.

They are a mid-heavy fabric, so they feel best in AC offices, on flights and trains, and in the cooler months. On a hot afternoon outdoors they will feel warmer than a light cotton trouser.

Both sizes will fit, because the drawstring waist adjusts. Pick the smaller size for a snug waist and a slimmer leg. Pick the larger size for a looser drape through the hip and thigh. Each product page has the full waist, hip and length chart.