If you've spent any time on fashion TikTok recently, you've probably noticed that the medieval aesthetic is having a serious moment. Castlecore, the trend that's currently making velvet, chainmail-adjacent textures, and sweeping dark gowns feel urgently relevant, isn't exactly new as a concept, but the way it's being interpreted in 2025 and into 2026 is something genuinely interesting.
This isn't Halloween fancy dress. It's not Renaissance faire cosplay, though it draws from similar wells. Castlecore is a fashion sensibility, an approach to dressing that takes the visual language of medieval architecture, garments, and materials and translates them into something wearable in a modern context without losing the drama or the romance that makes the aesthetic compelling in the first place.
What Actually Defines the Castlecore Aesthetic
The name is fairly self-explanatory: castlecore is an aesthetic built around the visual world of castles. Stone walls, vaulted archways, tapestries, torchlight, the particular colour palette of the medieval interior. Translated into clothing, this means a specific set of recurring elements.
Colour is perhaps the most immediately recognisable component. Castlecore lives in a particular range: deep burgundy, forest green, stone grey, dusty rose, off-white, midnight black, and rich terracotta. These are the colours of faded tapestries, of stone washed by centuries of rain, of medieval court dress preserved in illuminated manuscripts. They're not bright, and they're not pastel. They have a certain weight to them even at a glance.
Fabric and texture matter enormously. Velvet is the quintessential castlecore material, and it's having a significant commercial moment to match. Brocade, heavy linen, textured cotton with a roughened surface, leather and leather-adjacent materials: anything that has physical presence and suggests age or craftsmanship reads as castlecore. Anything sheer, synthetic-looking, or obviously modern sits outside the aesthetic.
Silhouette tends toward volume and structure rather than body-conscious cuts. Billowing sleeves, full skirts, structured bodices, dramatic necklines whether high-collared and austere or wide and off-shoulder in a courtly style. The overall impression should have a sense of scale to it.
Castlecore vs. Dark Academia vs. Goblincore: How They Differ
The cottagecore-adjacent aesthetics have proliferated to the point where it can be hard to tell them apart, and castlecore shares DNA with several of them. Dark academia is the closest relative: both deal in a certain intellectual melancholy, rich colours, and historical references. The distinction is largely one of setting. Dark academia places itself in libraries, universities, autumn parks. Castlecore places itself in cold stone corridors, overgrown ramparts, great halls lit by firelight.
Goblincore is an earthier, messier sibling: moss, found objects, fungi, a delight in the overlooked and unglamorous. Castlecore is considerably more formal and architectural by comparison. Where goblincore revels in imperfection, castlecore has a certain grandeur to it even in its more understated interpretations.
The practical difference for dressing is mostly one of reference point. Castlecore asks: what would a person actually wear in this castle? Not a peasant in the fields, but someone of significance; a lady in waiting, a court scholar, a keeper of some arcane responsibility within the castle walls.
How to Actually Wear It
The accessible entry point into castlecore is through colour and fabric rather than full silhouette commitment. A deep burgundy velvet midi dress with a simple silhouette reads as castlecore without requiring you to navigate a full medieval gown. Pair it with leather boots, minimal jewellery in aged gold or tarnished silver, and a structured belt or corset detail and the reference is clear.
For a more committed interpretation, silhouette becomes the vehicle. Billowing sleeves, particularly the poet sleeve or bishop sleeve styles that have been recurring in fashion collections for the past few seasons, are the most legible castlecore silhouette signal. Add a structured bodice or a laced-front detail and the reference sharpens considerably.
Layering is central to the castlecore approach at any level of commitment. A chemise under a heavier dress, a velvet overdress over something simpler, a cloak over everything: historical dress was inherently layered and castlecore reflects that. The layering also has the practical advantage of making the aesthetic work across seasons, which is part of why it's sustained interest beyond a single trend cycle.
For those drawn to historical Renaissance fashion inspiration, castlecore and Renaissance dressing overlap significantly in their visual language, and many of the same garments translate between contexts beautifully.
And if you want pieces that can do double duty at a festival and in everyday styling, our flowing medieval renaissance dresses for festivals and fairs sit naturally within the castlecore aesthetic without any translation required.
Is It Just a Trend, or Does It Have Staying Power?
Fashion trends built around established subcultures tend to have more longevity than those built purely around a visual novelty, and castlecore has a substantial and committed community behind it that predates the TikTok moment. The aesthetics it draws from, medieval history, gothic architecture, fantasy literature, Renaissance faire culture, have sustained enthusiastic interest for decades. The current mainstream fashion attention is likely to pass, as trend cycles do; the underlying aesthetic will remain.
For anyone who already lives in this world, the current moment is simply an occasion when what you were already wearing is being recognised as fashionable. That's a pleasant experience, and one that tends to bring better availability and selection in relevant clothing. Enjoy it without worrying too much about when the trend cycle will move on.
Why HolyClothing?
HolyClothing has been making ethically crafted, made-to-order Renaissance and medieval-inspired clothing since 2001, in 100% vegan plant-based fabrics, in sizes small to 5X. Every piece is handcrafted by artisans earning a living wage, with no overproduction and no waste. If the castlecore aesthetic speaks to you and you want pieces built to last rather than trend-cycle throwaways, explore our collection today.
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