Simon Miller Tops and Shirts: The Loch Button Up and Beyond

Simon Miller tops start with one shirt: the Loch poplin button up, which the brand calls its all-time bestseller. Around it sit sleeveless poplin tops, striped tees, crochet tops and sequin shells. Shop 40 tops in the Simon Miller collection at Coveti and our designer shirts edit.

Key facts

• Tops at Coveti: 40
• Price range: $320 to $690
• Bestseller: the Loch poplin button up
• Loch fabric: stretch cotton poplin, mostly cotton with nylon and spandex
• Sizing: US letters XS to XL, true to size

The Loch poplin button up

The Loch is a stretch cotton poplin shirt with a cut-out back and an adjustable tie, so you can pull it in at the waist. The stretch keeps it neat when it is tucked in, and the cut-out makes it feel like a summer piece rather than an office shirt. It comes in black, white (the brand calls it Macadamia) and a run of stripes, and there is a sleeveless version.

1. Loch Poplin Button Up in Black, $470

The core Loch in black, which works with every Simon Miller skirt.

2. Loch Poplin Button Up in Macadamia, $470

The white version, the one to buy if you only buy one.

3. Loch Poplin Button Up in Venetian Red Stripe, $490

Red and white stripe, which matches the Inna mini dress and the Pia pant.

4. Loch Sleeveless Poplin Button Up in Black, $440

The sleeveless Loch, with the same cut-out back and tie.

More on the fabric in our Poplin shirts guide.

Other poplin tops

The Anya is a wrap top in the same poplin, and the Inna is a top with ties that matches the Inna dresses. The Maren adds crochet cups to a poplin button up.

5. Anya Poplin Wrap Top in Black, $470

A wrap top with cutaway ties and cuffed sleeves.

6. Maren Poplin Crochet Button Up in Macadamia, $610

A white poplin shirt with crochet detail at the bust.

Tees, knits and crochet

The Kini striped tee is fitted cotton jersey with a trompe l’oeil bikini top appliqued on the front. The brand says it is true to size and suggests sizing up for a boxier fit. The Beja crochet top is asymmetric and fringed.

7. Kini Striped Tee in Venetian Red Stripe, $350

Fitted striped jersey with the bikini applique.

8. Beja Crochet Top in Natural, $690

Hand-knit crochet with an asymmetric fringed hem.

Party tops

9. Shirley Sequin Top in Satellite Silver, $580

A sleeveless shell covered in teardrop sequins, for the holiday season.

Which top for which look

Sizing

The Loch and the other poplin tops are true to size, and the stretch gives a little room. As a guide, an S is a UK 8 and an M a UK 10 to 12. Full conversion in our Simon Miller size guide.

Frequently asked questions

Is the Simon Miller Loch shirt true to size?

Yes. The brand marks it true to size, and the stretch poplin and adjustable tie let you adjust the fit at the waist.

What is the Loch shirt made of?

Stretch cotton poplin. The black and white versions are 78% cotton, 19% nylon and 3% spandex; some stripes vary slightly.

Does the Loch shirt have an open back?

Yes. It has a cut-out at the back closed with an adjustable tie.

How do I wash the Loch shirt?

The brand says machine wash cold, do not bleach, tumble dry normal and iron on a low heat for the core colours. Some stripes say dry clean for best results.

What is Macadamia in Simon Miller?

Macadamia is the brand’s name for its white poplin colourway.

More Simon Miller guides

Every Simon Miller page by Coveti fashion editor Gemma Deeks: Who is Simon Miller?, Simon Miller dresses guide, Simon Miller skirts guide, Simon Miller knitwear and knit sets, Simon Miller size guide, Simon Miller Fall 2026, Fringe skirts, Crochet dresses and skirts, Sequin mini dresses, Striped pants, Poplin shirts, Brands like Simon Miller. Shop every Simon Miller piece in stock.

Sources and method

Checked on 26 October 2026 by Gemma Deeks, fashion editor at Coveti. Fabric, care and fit notes are the brand’s own product page text; prices are Coveti’s live catalogue on that date and move with stock. Where a claim could not be checked it was left out, and where the page gives our own styling advice it says so.

• simonmillerusa.com, About us: lifestyle brand, Los Angeles studio, Chelsea Hansford as CEO and Creative Director
• simonmillerusa.com, Clothing: product pages with composition, care and the brand’s own sizing notes (332 pieces read on 26 October 2026, 199 full price pieces with a packshot carried by Coveti)
• Coveti live catalogue, 26 October 2026: prices and stock