I carried this on the PCT, so it has some miles on it.  But it was only used to heat water, never cooked in.  It is still perfectly round.  In great shape.  Mug/pot is 1.9 oz and lid is 0.6 oz on my kitchen scale.  The 550ml does not come with any gradations so I used a punch to mark 12 oz and 16 oz.  The punches do not pierce the pot (see pic). Also comes with original mesh sack that I never carried.  Will mail to you in US for $25, ppff preferred.