"Rain gear" refers to clothing or equipment that is specifically designed to protect and keep you dry during rainy or wet weather conditions. Full definition
Even though precipitation is lowest in the summer, you should still be prepared with rain gear since the weather is so variable on the peninsula. (awayfromtheoffice.com)
Visitors should pack rain gear and hiking shoes, the rain forest didn't get its name without a reason. (yourtravelmap.com)
Bring layers for changing weather and rain gear if necessary. (parksconservancy.org)