Nalgene Ultralite Narrow Mouth 4oz BPA-Free HDPE Square Storage Bottle

Space-efficient, leakproof, and ultralight — the 4oz square bottle for serious trail organization.

The Nalgene Ultralite 4oz Square Bottle is the rugged, space-efficient storage solution for outdoor adventurers, travelers, and everyday organizers. Made from BPA-free HDPE, it's leakproof, shatter-resistant, and built for the demands of backpacking, camping, hunting, and travel. The square shape maximizes pack efficiency and won't roll around in your kit.

Key Specs

• Capacity: 4oz
• Shape: Square, narrow mouth
• Material: HDPE (High-Density Polyethylene)
• BPA-free | Leakproof | Ultralight
• Use: Soaps, oils, spices, fuels, powders, small items

Why It Works

At 4oz, this is the right size for multi-day trip quantities of most trail liquids — enough camp soap for a week, enough cooking oil for several meals, enough fuel treatment for a full tank. HDPE is chemical-resistant and odor-resistant, safe for food-grade and non-food use alike.

Ideal For

Backpackers, thru-hikers, hunters, anglers, overlanders, and anyone who wants organized, leakproof liquid storage for extended outdoor trips.