The Strype Hyrochromic Swim Trunk in Space Blue from Psycho Bunny:

• Hydrochromic swim trunk reveals a hidden Bunny logo pattern when it's wet.
• Tonal embroidered Bunny logo on front leg
  
• Two front on the seam slit pockets
• One rear flap pocket with velcro closure
• Elasticized waistband & drawstring
• Interior net lining
• Waterproof carry bag
• 100% Polyester
• B6W816X1NL-404-SS23-PB

Hydrochromic is a term used to describe a type of material that changes color when exposed to water. In the context of swim trunks, hydrochromic materials are used to create a unique and dynamic look. When the trunks come into contact with water, the material changes color, revealing a hidden design or pattern. The color change is temporary and returns to its original state once the fabric dries.