Detail 01
Neoprene body
Closed-cell foam absorbs knocks and resists moisture, but it stays flexible — heavy weight on top still reaches the mouthpiece.

Independent shopping perspective
Neoprene zip pouch for a French horn mouthpiece. For horn players who want their mouthpiece cushioned instead of loose in the case.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
Closed-cell foam absorbs knocks and resists moisture, but it stays flexible — heavy weight on top still reaches the mouthpiece.
Detail 02
Keeps the mouthpiece from working its way out in a bag. The zip pull is the usual first wear point.
Detail 03
Built around the horn's narrow shank and deep funnel cup. Larger brass mouthpieces won't sit properly inside.
Detail 04
Blends into a black case interior — a real downside when you're digging for it under stage lights.
Detail 05
Cheapest of Protec's neoprene pouches. Cheap enough to buy one per mouthpiece if you rotate.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
It's cut for French horn dimensions, which are narrower. A trumpet mouthpiece is a different shape; the N203 is the trumpet version.
It prevents case rattle and scratching, and softens minor knocks. A hard drop can still dent the rim or shank.
It's a soft pouch that compresses, so it tucks into most accessory compartments. Rigid mouthpiece boxes take up more room.
Only if it's dry. Zipping a damp mouthpiece into any enclosed pouch traps moisture against the plating.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.