Brooks Caldera 8 Men's Size:8.5 12mm double bolting steel shackle

12mm double bolting steel shackle provides anti-twist protection

Main : bluesign® approved 100% recycled 210D nylon w/ high-tenacity double ripstop

It's self-inflating to allow a personalized level of support and can be adjusted with one hand to add critical comfort to bad seats anywhere

Fuel Regulator-No

Properly cleans and lubes cases for resizing

Brooks Caldera 8 Men's Size:8.5 12mm double bolting steel shackleUltra cushioned trail running shoes are always ready for your next adventure. Don't miss the Caldera 8 with enduring comfort, plush cushion, and an adaptable ride made for long distance runs. Features Extra cushion Smooth, adaptable ride Breathable performance upper Specs Designed for Trail Midsole drop 6mm Weight 14. 4oz 408. 2g Feel under foot Balanced A blend of soft and dynamic cushioning that offers a smooth feeling with each step.