Sideline womenswear SS26 collection model wears the Josie Jacket in Toffee and Willow Shirt in Lilac
New Collection Our Brands Spring Summer Womenswear
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Sideline 'Foundations' SS26 Collection

Paying homage to the thoughtful, everyday pieces we find ourselves returning to time and time again, and true staples (foundations) of a conscious wardrobe, this season, Sideline’s SS26 collection, entitled ‘Foundations’, celebrates the brand’s grounding design principles.

From the tactile nature of using natural fibre textiles to their signature relaxed, feminine silhouettes, this array of styles is a tribute to slow fashion. It presents a beautiful selection of easy-to-wear pieces featuring striking details.


Model reclines on a sofa wearing the Sideline Women's Winnie Dress in a Mix patchwork design

Sideline Women's Winnie Dress - Mix


An independent British brand making beautiful, well-made clothes that stand the test of time, Sideline is based in Lewes, East Sussex, UK, where their pop-up space and studio showroom invite visitors into their world, where the designs are first imagined.

We welcome you to shop the Sideline SS26 womenswear collection online and in our Totnes, Devon shop.


Model wearing the Sideline Willow Shirt in Brick Stripe with black trousers and a close up of the Sideline Willow Shirt sleeve in Lilac


The Willow Shirt: a Sideline staple defined by its versatility and beautiful embroidery. Whether worn open as a light layer or buttoned up for a classic look, its relaxed fit makes it an easy everyday favourite paired with jeans or trousers in spring, and skirts or shorts in the summer. Crafted in a lightweight cotton/linen blend with a textural feel, a timeless staple available in Brick Stripe and Lilac for SS26.  
Model wearing the Sideline Leila Trousers in Earth and the Sideline Leila Trousers in Oat with a mustard yellow vestIf you’re looking for the perfect 'baggy' fit that still feels refined, the Leila Trousers are a standout, in either rich Earth or Oat for a summery feel. They are crafted for ease with a loose barrel leg shape, an elasticated waistband, and the cotton-linen blend feels wonderful against the skin. We love how the curved, wide leg shape adds a modern edge to an everyday staple.Model wears the Sideline Josie Jacket in Toffee layered on top of the Sideline Willow Shirt in Lilac styled with a straw woven bucket hat

The Josie Jacket - Toffee is the ultimate spring/summer layer, balancing utility with aesthetically pleasing attention to detail. Crafted from a robust yet surprisingly soft-to-the-touch denim, it’s a jacket designed to be lived in. Look closely, and you’ll find Sideline’s signature touches: bar tacks on a curved cuff, utility-inspired elbow patches, and contrast blue stitching on the buttons. Even the interior is a work of art, with every seam bound in undyed neutral cotton for a clean, premium finish.

Model wears the Sideline Wisp Jumpsuit in a monochrome Gingham pattern next to a back view of the same designThe Wisp Jumpsuit is all about ease and elegant proportion. With a graceful V-neckline at both the front and back, it features deep pleats that flow into a relaxed, wide leg. What we love most is its versatility - a clever drawcord at the waist allows you to wear it cinched for a defined shape or loose for a breezy, oversized feel. Crafted from a beautifully tactile textured gingham, it’s a foundational piece that works perfectly layered over a tee now or worn solo when the sun arrives.
Model wears the Sideline Betsy Dress in Off White StripeA unique take on a favourite silhouette (based on the best-selling Winnie Dress), the Betsy Dress stands out with its clever use of contrasting off-white stripe directions. Made from a beautiful, textured cotton-linen, this dress is designed for those who love effortless volume and artisan detail. Wear it loose and billowy for a relaxed look, or size down for a slimmer profile. It’s a striking, thoughtful staple that transitions seamlessly from spring through to autumn.

Model stands on sofa wearing the Sideline Winnie Dress in Mix patchworkA bold, three-coloured panelled dress that balances a statement look with everyday ease. The Winnie Dress is all about volume and comfort, featuring a billowy fit that feels wonderful in a tactile cotton-linen blend. We love the attention to detail, from the delicate covered buttons at the shoulder to the essential concealed pockets. It’s a versatile foundation for any spring wardrobe - wear it oversized for a relaxed feel, or size down for a more structured silhouette.
Model steps to show the wide width of the Sideline Willow Skirt in Patchwork paired with a close up photo of the fabric patchwork design

The Willow Skirt showcases the brand’s artistry through its unique panelled construction. By working three signature fabrics into one silhouette, Sideline has created a skirt that is as visually striking as it is easy to wear. The elasticated waist ensures comfort all day long, while the hidden pockets maintain its clean, relaxed line. It’s an everyday staple that feels truly one-of-a-kind.


Find your everyday foundations in the full Sideline range here.