The Alta Bunion Lady is a classic lightweight leather hiking boot for people with hallux valgus. It provides extra space for the big-toe joint to ensure full comfort during easier trekking trips. Upper: waxed nubuck. Sole: Vibram Ultra Grip. Sole Features: Medium soft. Heel shock absorber. Full-length cushioning. Rounded heel and tip for easy walking motion. Lining: Chrome-free leather lining.