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Jacksonville's Leading Local News: Weather, Traffic, Sports and more | Jacksonville, Florida | FirstCoastNews.com

Innovative New Arm Cast is Waterproof, Lightweight and Breathable

Casts have long been overdue for an upgrade since their creation in the 1850s, so Chicago-based startup Cast21 developed a futuristic-looking sleeve that's as strong as a fiberglass cast, but with less hassle.