Hush Puppies - Flex Trek II (Dark Brown Nubuck) - Men's: Add sporty style to your summer wardrobe with the easy Flex Trek II sandal. Full-grain, hand-antiqued leather upper with adjustable hook-and-loop straps for a secure, personal fit. Neoprene lining offers improved fit and cushioning for all-day wear. Contoured polyurethane footbed with wrapped leather covering for exceptional underfoot comfort. WaveReflex(R) rubber outsole uses reverse action flex waves to deliver flexibility and complete freedom of movement with every step. Airport friendly.