SPIbelt Large Pocket Belt Color:Black with Red Zipper It's made with two layers

It's made with two layers of performance foam that offers superior support and a soft rebound

FF BLAST™ PLUS technology

Injection molded EVA outsole

Firewall 180 on the front of leg and upper sides for thermal mobility

A Base Layer Tight featuring a new and improved stretch Mizuno signature Breath Thermo® thermal fabric technology that uses escaping body vapor to generate heat

SPIbelt Large Pocket Belt Color:Black with Red Zipper It's made with two layersThe SPIbelt expands to hold larger smartphones; including the iPhone 13 Pro Max and Samsung Galaxy S20+. This fitness belt is called one of the best running belts for marathon runners, but its use doesnt stop there. It is perfect for walking, working out, travel, medical needs, and so much more. Keeps all your exercise accessories, headphones, keys, ID, and credit cards safe, secure, and close at hand. The SPIbelt expands to carry what you need. 8 x 4