Sienna Miller Just Wore the Romantic Dress Trend That's All Over Zara, H&M and Mango
The nightwear-as-daywear trend is everywhere right now—and Sienna Miller just gave us the chicest way to wear it.


If you’ve noticed an influx of lace-trim skirts, bias-cut satin slips and whisper-soft halternecks popping up everywhere lately, you’re not imagining it. As a shopping editor, I can confirm: the nightwear-as-daywear trend is officially inescapable. But there’s a new elegance to this season’s take—less boudoir, more ‘90s Kate Moss on holiday. The key to pulling it off IRL? It’s all in the styling contrasts. Throw on a roomy blazer, swap heels for ballet flats or strappy sandals, and let the lace do the talking—and Sienna Miller, of course, just delivered the masterclass.
On a sun-drenched getaway with friends, the actor was recently spotted in a slinky, lace-trimmed slip dress that taps directly into one of 2025’s biggest trends. Her dress hails from London-based brand Debute—a label loved for its vintage-inspired lingerie silhouettes and barely-there elegance. But Miller’s not the only one championing the look. Alexa Chung wore a green lace-trim dress earlier this summer, while one particular lace slip from Zara has already achieved near-viral status online.
Whether you’re going all in on the trend with a full slip dress, or just dipping a toe in with a lace-edged cami or midi skirt, there are endless ways to wear it now. Style it up, dress it down, make it your own. From H&M to Zara, we’ve tracked down the best high street lace detail dresses that capture the same quietly luxurious feel. Keep scrolling to shop our edit.
Shop Sienna Miller's Lace Trim Dress
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Marina Avraam is Senior Shopping Editor at Who What Wear UK, where she expertly navigates Zara, H&M, Toteme and Net-a-Porter (to name but a few) on a daily basis to unearth the most worthwhile pieces, while valiantly resisting the urge to add every single one to her basket. At Who What Wear, Marina is committed to curating a shopping experience that feels both aspirational and intentional, guiding readers to items—both affordable and investment—that will genuinely benefit their wardrobes.
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