Keen Womens Whisper Walking SandalKeen Womens Whisper Walking Sandal The Keen Whisper is a lightweight performance walking sandal, that's great around water as well as on trails. Elastic cording gives a secure fit and makes them easy to adjust in or out of the water, while the washable upper makes cleaning easy. A cushioned footbed provides comfort on the go. Constructed using a quick drying polyester webbing and a breathable quick dry lining, which helps to ensure a constant supply