The small round HDPE bottles that end up holding everything. Camp soap, olive oil, contact solution, hot sauce, spices, a couple of days of pills. Wide mouth means you can fill and clean them easily and get a spoon in if you need to.

Two sizes here. The 2 oz is carry-on friendly and actually holds a little over its rating to the bottom of the neck. The 4 oz covers a long weekend of most things. Both are the same lab-grade HDPE as the rest of the Nalgene line, so they take a beating and go in the dishwasher.

Specs

• 2 oz / 60 mL: 3.39 in / 86 mm tall, 39 mm diameter, 28 mm screw cap
• 4 oz / 125 mL: 99 mm tall, 50 mm diameter, 38 mm screw cap
• Material: HDPE, translucent, with unlined polypropylene caps
• Freezer safe
• Wide mouth accepts ice cubes