On Cloud Iron / Black Cloud Ultra 3 Beams REI size 8.5 Mens 。Cloudultra 3 BEAMS REI Built for tackling ultra distances on technical terrain. With a CloudTec® cushioning system engineered for your fastest runs. Designed in partnership with BEAMS and REI Co-op to blur performance and style. Activities Trail running | Hiking | Running Key features • CloudTec® cushioning system engineered for stable runs • Dual-density Helion™ HF hyper foam for energy return on technical terrains • Nylon Speedboard® for stable movement • Missiongrip™ outsole for traction on mixed terrain • Durable upper for added protection on rugged terrain • Secure, technical fit • Branding along sides of design • Printed sockliner with logos as a nod to our partnership