Giving back has become more and more important at Lutz & Patmos.

Over the years, Tina Lutz and Marcia Patmos have asked celebrities—ranging from Kirsten Dunst all the way to Desmond Tutu—to create a special piece to benefit a charity of the guest designer's choice. This season, in honor of the label's tenth anniversary, they brought back six reeditions (including cashmeres by Christy Turlington Burns and Sofia Coppola). But it wasn't all about well-known names. One of the duo's cozy coat-cardigan hybrids was knit in Uruguay through an ongoing collaboration with the Fair Made artisans' group; the free-range sheep and alpaca grazed on native grasses, and the wool was colored with nontoxic dye. Another standout piece, a fringed charcoal vest, was handmade with a traditional macramé technique by indigenous Bolivian women; both practical and plucky, it was the type of item that makes getting dressed to face the winter less of a drag.

There were plenty of year-round staples, too. Subtly color-blocked silk tees and tanks in olive, navy, and bright peacock were perfect for layering, and reversible to boot. Bird-wing patterns spotted in a 1959 edition of A Field Guide to the Birds were echoed on a sheer intarsia sweater with geometric insets of metallic yarn. Wear it with a pair of the rabbit-fur arm warmers, in lovely mottled shades of ash and mauve, and you might not want winter to end.