Wild noted a characterstic of Roman diamond twills he studies were a higher sett than ppi. Wild also noted pattern units were often 10 warp ends and 9 picks.
The sock is picutred in Illustration 2.12 pg. 88 2/2 diamond twill from Vindolanda Roman fort, Northumberland. The sock measured 16 cm in length. the sock is a similar shap to a simple boot.