A glass insert wrapped in a fully removable 360 degree genuine leather sleeve, so your whiskey never touches metal and never picks up that tinny aftertaste. Two sizes cover different moods: a 3.4oz single shot that is pocket ready and TSA compliant, and a 7.1oz double shot for trips and sharing. Six colorways from Olive to Cherry Red, plus 300 plus complimentary laser engraving templates, make this feel personal rather than generic.

This is where the project really separates itself. Every flask is lab tested for lead leaching and food contact safety, aligning with US FDA CPG 7117.07, California Prop 65, and EU REACH. The removable sleeve is a sustainability play too, since a broken flask means swapping the inner glass insert rather than binning the whole thing.

Early Bird tiers open around $113 for the 100ml and $126 for the 210ml, each including the leather sleeve, the inner glass bottle, and a spare inner glass bottle, plus eleven more items in the box. Kickstarter Special tiers sit slightly higher near $120 for the 100ml. Savings land in the $40 to $54 range, and the free engraving turns a good flask into a gift that actually means something.