Groupon offers the Scosche railKASE Aluminum Bumper for iPhone 5/ 5s in Black (pictured)
or Silver for $6.99 plus $3.99 for shipping. That's $2 below our mention last year and the best price we've seen. (It's also a current low by $17.) Crafted from aircraft-grade aluminum, this bumper features an internal rubbery TPU band that cushions the phone and absorbs shocks.