Like a helmet for your banana (no, not that one). Such a clever solution to the squashed-banana-at-the-bottom-of-the-bag problem!
It claims to "fit the vast majority of bananas" and has small holes to let your fruit breath. Comes in yellow, green, blue, purple and red.

Tired of taking your lunch to work only to open and find your banana and fruit is smashed and bruised? With these clever cases, your fruit will be able to survive until noon....that is until you devour them!

The Banana Guard is a very useful tool for any avid lunch-packer. If you prefer bringing your lunch to school or work and hate experiencing the misfortune of a squished banana, this is for you! The Banana Guard is designed to hold most bananas, has ventilation holes to keep the banana from over-ripening and comes in a variety of different colours. What more could you ask for?

Brilliant!

Tired of bruised bananas? This banana guard will kick that problem out of sight, with special features such as perforations for ventilation to prevent premature ripening and a sturdy locking mechanism to keep the banana closed and safe.

A friend of mine has tested it out and says that it fits most banana and works excellently.

Just cool

I wish i had this in grade school. By the time i was able to peel and eat my banana it was all soggy and brown, and i ddint want to be a weird kid and eat it. This will protect your banana all day through your backpack. Great for kids

"The Banana Guard was specially designed to fit the vast majority of bananas. Its other features include multiple small perforations to facilitate ventilation thereby preventing premature ripening and a sturdy locking mechanism to keep the Banana Guard closed. The Banana Guard is of course dishwasher safe for easy cleaning."