Rubber sole Tough material on the upper is lightweight yet durable. Triple-stitching around the collar helps eliminate hot spots. Crater foam midsole adds stability to every step. Originally designed for performance running, the Max Air unit in the heel adds lightweight cushioning. Translucent rubber wraps onto the mudguard for added durability. Air Max goes crunchy granola. The updated design pairs durable fabrics with colors that throw it back to your mom's favorite ski jacket from the '90s. You can throw them on or easily hook them to your pack with webbing pull tabs that double as clip points. A little crunch goes a long way, though—the classic Air technology makes every trail feel like you're literally walking on Air.