Much like a great duet, designer collaborations can bring about some of the most memorable fashion moments. And this season is full of them. Sometimes thought-provoking, often unexpected and always hugely covetable: these collaborations are the best thing to happen since Sonny met Cher. Our advice? Get them now before they're gone.

Fashion's master storyteller, Dries van Noten, gives a whole new twist on collaborations this season by putting logos from the traditional mills he works with (from Scotland to Somerset) centre stage. Sure, they might not be brands we're familiar with, but the quality, heritage and care they weave into each item is well worth celebrating. And while you're at it, check out our Buying Better, Inspiring Change edit of brands that champion British makers, helping to keep mills like these open.

This is the collaboration that's had the front-row regulars (and stylish hiking enthusiasts) seriously excited. Bringing outerwear from the mountain trail to the city streets, the extensive range of jackets includes butter-soft leather, waterproof technical fabrics and tweed spliced with the North Face logo, plus bold strokes of colour. Miles away from your dad's oh-so-sensible walking jacket, but just as functional as it is on-point: we say, invest now for many winters to come.

Streetwear's man-of-the-moment Heron Preston has come up with one of the most unlikely collaborations of the season: a collection with the Department of Sanitation New York (DSNY). Far from Zoolander-esque ensembles of garbage cans and bin bags, the collection is inspired by the uniforms of DSNY workers - a bold and colourful ode to the men and women who keep the Big Apple's city streets clean. First, Vetements made DHL delivery men and women fashion icons, now it's DSNY… here's hoping the Selfridges yellow name badge is next.