A great shirt is a foundation, a starting point, a piece that shapes the way you carry yourself through the day. For our founder Ida Siu, craftsmanship has always been about more than just clothing: it’s about resilience, longevity, and creating something that stands the test of time. Raised with little but driven to build something lasting, Ida spent decades perfecting the balance between structure and softness, tailoring and movement. That philosophy is woven into every IDA+S shirt and blouse, designed for the demands of real life while embodying understated elegance.
Sharp enough for the boardroom yet relaxed enough for everyday wear, the IDA+S collection of blouses and shirts is built on versatility. Crisp button-downs bring definition to a tailored look, fluid silk blouses add softness and drape, and relaxed, oversized styles offer the kind of quiet luxury that moves with you through the years.
Every piece is crafted from premium, sustainable materials: breathable cotton that holds its crispness, soft wool blends that offer warmth without weight, and draping silk for a polished, refined finish. Designed to integrate seamlessly into any wardrobe, these pieces offer longevity in both style and construction, making them a true investment.
Details make the difference. So, what defines a shirt versus a blouse? A shirt is built on precision: think sharp collars, crisp cuffs, and clean lines that polish any outfit. A structured cotton-blend shirt with refined topstitching and concealed buttons, creates a clean, tailored silhouette.
A blouse offers a softer approach, designed with fluidity in mind. Subtle pleats, gentle draping, and delicate fastenings create a more effortless silhouette, ideal for ease of movement. A wool-blend design with subtle pleats balances structure and movement, shifting easily between work, weekend, and everything in-between.
The IDA+S collection includes refined variations of both, ensuring you have options that feel considered and intentional for every setting.
A great shirt should feel like it was made for you. Our comprehensive sizing guides take the guesswork out of finding your perfect fit, with precise bust, sleeve, and length measurements available for each style.
Sustainability isn’t just about how a garment is made, but also about how it’s cared for. Our shirts and blouses are crafted with longevity in mind, and will last for years with proper care. Wool and silk blends should be gently hand-washed or professionally dry-cleaned, while cotton styles can be machine-washed on a delicate cycle to preserve their softness and structure. Storing shirts on padded or wooden hangers helps maintain their shape, and always follow the care instructions provided on each garment to ensure their durability.
Every IDA+S piece is a reflection of that philosophy: designed with intention, made to last, and crafted to be worn again and again. This is fashion with purpose, an investment in quality over excess, refinement over trends, and pieces that become part of your story.
Explore our collection of timeless shirts and blouses, created for the life you lead, today and always.
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