Kinda with Hikemor on this, from a climate and weight position. Lots of people buy SS bottles here in AZ and lots of people burn their fingers and arms grabbing them after they have heated up in the sun. And they're heavy. I also so Platypus roll ups or a 1L Nalgene and a variety of .5L+ cups like GSI Halulite minimalist (fits Nalgene), SS Cup (fits Nalgene) or Snow Peak Titanium 650 (DOES NOT fit Nalgene). I use a mesh bag for my EDC carry.