Keen Clearwater CNX Sandals women's size 8. I found these sandals second hand in good condition. 

Women's sandals built for active lifestyles and water sports enthusiasts.

Kayaking, sailing, and windsurfing already get your heart rate going. These adventures will keep you active and fit, but you need the right gear to get the most out of your time on the waves. These Keen Women's Clearwater CNX Sandals are designed to keep you comfortable while also providing you with a safe and secure footing. The durable polyester material is cut in a web design that allows your foot to remain open to the air. It is cool enough to wear for a workout, and it helps to deflect sharp objects that might injure your feet. The rubber soles have a traction grip that improves your stability. Arch support improves the fit and helps your feet to resist the effects of fatigue. They are water resistant and machine washable.

Key Features:

• Polyester material
• Rubber soles
• Antimicrobial materials
• Water resistant
• Bungee style laces
• One year warranty against defects
• Made in USA