NO GRIM GYM PRESCRIPTIONS, I promise. But while watching tennis (the French Open) on TV, I’ve been thinking about fitness-inspired street clothes—adaptations of the gear worn by genuine athletes like singles finalist Samantha Stosur (whose chic navy and white Lacoste turnout was a winner even if she was not). Sportif apparel is getting better and better cut, while having the additional virtues of hard-wearing, easy-to-care-for fabrics and functional details (like hoods that stay up, multiple pockets, sleeves that snap against the rain). I used to live in Patagonia clothes; these days, alas, they put their logo on everything: ugh. My new crush is an ultra-green Portland, Oregon-based company called Nau (from the Maori “welcome”), which puts its logo on nothing and donates a percentage of the price to a cause that you select when you order online. Hip cropped pants, shapely tees and shirts, and superb jackets and coats (including thistle-weight down vests and coats that don’t make you look tubular) have an urban rather than countrified vibe. Not cheap, but now the core of my wardrobe, these clothes have a cool factor that I think is important for the older woman: The zippers and stretch and aerodynamically slim (but not sausagey) fit say that you are trim, alert, and kind of up on things; their comfort and practicality support a modern, energetic life. Nau doesn’t have huge in-store distribution (although there was a pop-up shop in New York’s SoHo last fall); for the most part it’s e-retail. However, real people answer the customer-service number and can discuss size with you, and I’ve had to return only a couple of things. These clothes won’t qualify you for Wimbledon (coming later this month), but you will be the sharpest spectator around.