rash guard; rash vest; rashie
A tight-fitting athletic shirt worn for water sports to protect against sunburn, chafing, and minor abrasions. Common in surfing, swimming, and beach settings.
When I go to the beach, I wear a rash guard to prevent sunburn.
子供用のラッシュガードはカラフルなデザインが多い。
Children's rash guards often come in colorful designs.