Women’s Designer Long-Sleeve Knits
Long-sleeve knitwear carries a quiet versatility. It softens tailoring, adds warmth without weight, and moves seamlessly between seasons. At IDA+S, our designer long sleeve knits are crafted with intention, reflecting the resilience and precision that shaped Ida Siu’s original factory. Every stitch is considered, every fibre selected for longevity rather than trend.
Our collection of women’s designer long sleeve knits includes ribbed long sleeve knits that contour gently to the body, relaxed silhouettes designed for effortless layering, fitted long sleeve knits that refine proportion beneath tailoring, and oversized knit sweaters that bring softness and balance to structured pieces. These women’s long-sleeve knits are designed to live within your wardrobe, not compete with it.
Soft Structure, Season After Season
Material choice defines both comfort and endurance. We work with 100% cashmere for unparalleled softness, cashmere-wool blends for warmth and resilience, merino wool for breathability and temperature regulation, soft wool blends for structure without stiffness, and premium knit blends that maintain shape through repeated wear. Each fibre is selected not only for its feel, but for its capacity to perform season after season. Through our vertically integrated supply chain, we oversee construction at every stage, ensuring durability is built into the seams.
Customers often ask what styles of long-sleeve knits IDA+S offers and what materials are used. Our designer long sleeve knits range from fine-gauge fitted designs suited to layering under blazers, to softly structured oversized knits ideal for transitional dressing. Cashmere and merino fibres provide warmth without bulk, while blended yarns enhance strength and reduce distortion over time. Sustainability is not an afterthought. By crafting knitwear in considered quantities and using long-wearing fibres, we reduce waste and encourage mindful investment in pieces designed to endure.
Designed to Layer with Ease
These women’s designer long sleeve knits pair naturally with tailored trousers and skirts, layer seamlessly beneath coats, and complement refined staples from our
designer sweater and knitwear collection. For lighter layering, explore coordinating pieces from our designer tank tops, or style beneath structured outerwear from our
designer coats range.
Finding the Right Fit and Caring for Your Knit
Fit should feel intentional yet effortless. Each product page includes detailed measurements for bust, shoulder and length, helping you select the silhouette that aligns with your styling preference. Whether you favour a fitted ribbed knit that sharpens a tailored look or a relaxed oversized sweater that softens structure, our sizing guides ensure clarity and confidence.
To preserve softness and structure, hand-wash wool and cashmere styles in cold water using a gentle detergent, or opt for professional dry cleaning when required. Always lay flat to dry and store folded rather than hanging to prevent stretching at the shoulders. Proper care extends the life of your knitwear and honours the craftsmanship invested in every piece.
At IDA+S, designer long-sleeve knits are created to move with you through shifting seasons and changing routines. With carefully selected fibres, disciplined construction and ethical production at every stage, each piece reflects strength in its seams and longevity in its design. Discover knitwear designed not only for warmth, but for enduring refinement.
