Should you leave climbing shoes in the sun?

Leaving climbing shoes in direct sunlight for extended periods is generally not recommended. The intense heat from the sun can potentially damage the materials and adhesives used in the construction of climbing shoes. Excessive heat can cause the rubber to degrade, become less sticky, and lose its performance. Additionally, prolonged exposure to sunlight can fade or discolor the shoe's upper materials.

It's best to store your climbing shoes in a cool, dry place away from direct sunlight when not in use. If your shoes are wet or sweaty after a climbing session, it's important to let them air dry naturally in a well-ventilated area, but avoid placing them directly under the sun. This helps maintain the integrity of the shoes and prolong their lifespan.