Reveal a prehistoric surprise with our water-activated Dinosaur Magic fabric. This isn't just any black board short—it's a wearable transformation waiting to happen. When dry, these swim shorts keep their secrets hidden. But splash some water on it, and watch as gray dinosaurs emerge! As the fabric dries, the dinosaurs gradually disappear back into the darkness, ready for their next appearance. How It Works Our innovative color-changing technology responds to water contact. The moment moisture hits the fabric, the previously invisible dinosaur print transforms from black to vibrant color. Once dry, the fabric returns to its sleek, all-black appearance—ready to surprise again and again. Every splash becomes an adventure with this conversation-starting piece. Pack it for your next vacation or wear it to your weekend plans—whenever water might appear, your dinosaur friends are ready to make an entrance. Our popular 4.5” swim shorts gives you two styles, solid coverage, and a great fit that doesn’t ride up or chafe. Fully reversible for 2 suits in 1 Same fit as our Swim 4.5” Short Smooth, durable flatlock seams won’t irritate or chafe  Fit-tested on all body types, sizes XS-6X Quick dry, 4-way stretch fabric UV Protection, UPF 50 80% Recycled Polyester, 20% Spandex,  OEKO-TEX®-certified fabric Uses polyester made from recycled bottles Machine wash cold, Machine dry low temperature or hang dry