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
Shop More Lace-Trim Dresses

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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