A believe the dicing o' hats is a regimental thing. Aw scottish regiments wear dicing roon there Glengarry's and a tartan swatch on there TOS (tam o shanter) Fer example the KOSB and Highland regiments hae a Red, white and Green dicing roond there,s. The Argylls wear Red and White. Ma mate has a black and white diced balmoral which a believe wis a Lovat Scout bonnet.