New uniforms issued by American Airlines have thousands of flight attendants itching to get the old ones back, according to a grievance filed with the carrier.
The uniforms, introduced in September, are causing a variety of issues, including "eye swelling, rashes, skin blistering," plus wheezing, headaches, and vertigo, claims a letter from the Association of Professional Flight Attendants, a union that represents more than 25,000 flight attendants at American.
More from NBC News:
Next year is shaping up to be another good one for airlines — and travelers
Trump tweets apparent call for more US nuclear weapons
With Obama's signature, U.S. Religious Freedom Law protects Atheists
"Personal health is so integral and critical to our Flight Attendant workforce, who must be able to work in a healthy manner and environment. To do so, our members need proper and safe uniforms," wrote the union's president, Bob Ross, in a letter on Wednesday to American's general counsel.
Nearly 2,200 flight attendants have reported reactions to the uniforms, Ross said. His letter called on American to stop issuing the uniforms; honor flight attendants' request for sick leave and reimburse them for medical expenses; and establish a $2 million fund to nail down what the issue is with the new outfits. It also claimed the airline wasn't taking "necessary steps" to address the problem swiftly.