You are using a web browser we don't support. Please use the latest version of one of these browsers.

Mozilla Firefox

Google Chrome

Apple Safari

Microsoft IE

Back to top

Nathan Sonic Boom iPhone 5 Armband


This product is no longer available, but don't go just yet.


  • Designed for the iPhone 5 fitted with or without an Apple bumper case (not included)
  • Lightweight neoprene material is comfortable next to skin; neoprene provides cushion for your device and protects against perspiration and scratches
  • Clear protective window cover allows full control of your phone while it is stowed
  • Wire management pod allows you to store earbuds; key storage pocket for stashing a single key
  • The Nathan Sonic Boom iPhone 5 armband has an adjustable design that fits most


View all Nathan Arm Pockets

REI membership


Best Use Running
Material(s) Nylon/silicone
Dimensions 4.75 x 2.5 x 0.4 inches
Weight 1.5 ounces

The REI Difference

100% satisfaction guaranteed

We stand behind everything we sell. If you are not satisfied with your REI purchase, you can return it for a replacement or refund within one year of purchase.

REI's guarantee doesn't cover ordinary wear and tear or damage caused by improper use or accidents.

If your item has a manufacturing defect in its materials or workmanship, you can return it at any time. See our limited warranty.

Gear & advice you can trust

At REI, we live and breathe the outdoors, and we're passionate about sharing our expertise with people of all skill levels. Whether you're new to the outdoors or a seasoned explorer, we'll take the time to understand your needs and help you find the right gear for you.

10% annual member refund

Anyone can shop at REI, but for a one-time $20 fee you can become an REI member and enjoy a lifetime of benefits. These include an annual member refund, typically 10% back on eligible purchases.*




*10% is typical but not guaranteed. Your refund is based on eligible purchases, which exclude REI gift cards, services, fees, REI Adventures trips,, and discounted items. Learn more