Double Dart EPS boards are a high end surfboard construction. Treat them that way. Do not leave them in your car when shopping. Do not leave them in direct sunlight while bronzing on the beach. They will get hot and it is possible for them to overheat and bubble up. Protect and take proper care of your investment. We recommend keeping these boards safe in a heat reflective day bag. Take the bag all the way to the beach, if you plan to hang out in the sun, before or after surfing. If the boards do get dinged, let them dry out and fix them properly. With proper care and a little love, these boards will take the day to day bumps and bruises very well, remain light and extremely lively on the waves and provide hundreds of days of surfing enjoyment. WARNING: Carbon Fiber surfboards can easily get Hot! They’re dark…and like all things dark, they soak sun and heat up. The Double Dart EPS boards are made with lightweight EPS foam and a Carbon Fiber shell.