SPIbelt Large Pocket Activity - Fitness & Training When you dig deep

When you dig deep

Durable insole board and outsole rubber compound to help withstand toe and heel striking

Inspired by our pinnacle race-day shoes

Designed on the same foundation of OOfoam™ technology and patented footbed geometry as other OOFOS models

there’s no shoe that handles it quite like the 880

SPIbelt Large Pocket Activity - Fitness & Training When you dig deepThe 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. Our new black mesh fabric is semi transparent and