Nalgene Loop-Top Replacement Lid/Cap Blue OEM for 16/32oz Narrow Mouth Bottle

The exact cap your Nalgene narrow mouth bottle shipped with — genuine OEM fit and seal.

This genuine Nalgene OEM Blue Loop-Top Replacement Cap is designed for all 38mm narrow mouth Nalgene bottles, including the 16oz and 32oz Narrow Mouth and the Nalgene Oasis. Same fit, same leakproof seal, same loop-top design as the original — no adapters, no guesswork.

Key Specs

• Color: Blue
• Thread size: 38mm (narrow mouth)
• Fits: 16oz and 32oz Nalgene Narrow Mouth bottles + Nalgene Oasis
• Design: Loop-top for secure attachment
• Seal: Leakproof
• Genuine Nalgene OEM part

Why It Works

Third-party caps often don't seal properly or crack faster than the original. This is the genuine Nalgene part — same material, same tolerances, same performance as what came with your bottle. The loop keeps it attached so you don't lose it again.

Ideal For

Anyone replacing a lost or damaged cap on a Nalgene 38mm narrow mouth bottle, or keeping a spare on hand for travel and outdoor use.