It grants 120 points of protection from Overheating, provides a cooling effect of 55°, and will drain the player's Sanity by 2 points per minute. Despite providing some protection from Rain, the Fashion Melon will gradually increase the player's Wetness up to a maximum of 33. The Fashion Melon does not have a durability, but instead rots after 3 days, similar to the Ham Bat, Garland, and Ice Cube.
Wearing the Fashion Melon while playing with WX-78 will cause the player to take damage periodically.
Due to the way the game is coded, the Fashion Melon also prevents freezing during Winter.