Terra Fi 3 is a first-rate successor to the 'classic' Teva sandal. Fit and comfort are excellent from first use, and, unlike the flimsier Hurricane model, footbed construction is comparable to the classic Teva. Footbed improvements include more-upturned heel cup in back, and 'shock-pad' directly under heel for added support; after a month of wear, I like both. I wear my Teva's all day, every day from April thru November, and wish every shoe I bought was this comfortable and functional. Just bought a second pair for beach/biking/whatever.