Formal Dresses

Q: Can I wear a midi dress to a formal event?

Check the invitation first. A midi in a dressier fabric with an elegant finish can suit some formal events . For black tie , follow the host’s guidance rather than assuming every midi works.

Q: Can I wear a sleeveless dress to a formal wedding?

Follow the couple’s dress code and venue guidance. If the ceremony asks for covered shoulders, bring a shawl or suitable jacket that works with your dress.

Q: How do I choose a formal dress for prom?

Start with your prom’s dress code, then choose your preferred silhouette. Check that you can sit, walk and dance comfortably before settling on your dress.

Q: Does Showpo offer free delivery in the UK? Are there plus sizes available?

Big night coming up? Showpo offers free standard shipping on UK orders of £100 or more. Our formal dress collection comes in curve and plus size options as well, along with a range of sizes 4–20. Check our size guide to help find your perfect fit, and read our returns policy before ordering. Find your favourite dress and get ready for a gorgeous night.

1144 Products

Lara Midi Dress

Asymmetrical Ruched Mesh Dress in Chocolate

£37.00

~~£79.95~~

You save 54%

4.9(12)

Oriella Maxi Dress

Panelled Thigh Split Strapless Dress in Black

£26.00

~~£89.95~~

You save 71%

5.0(39)

FURTHER 30% OFF

Helaina Midi Dress

Line Satin Dress in Red

£19.00

~~£99.95~~

You save 81%

Francis Maxi Dress

Halter Ruched Backless Dress in Red

£22.00

~~£89.95~~

You save 76%

4.8(21)

Eleonor Maxi Dress

Plunge Halter Tiered Ruffle Front Split Dress in Chocolate

£26.00

~~£89.95~~

You save 71%

5.0(1)

Trish Maxi Dress

Off Shoulder Hardware Trim Bodycon Dress in Chocolate

£28.00

~~£99.95~~

You save 72%

5.0(5)

New

Evie Maxi Dress

Crepe Fringed Shift Dress in White

£89.95

5.0(4)

Ari Mini Dress

Fringe Beaded Dress in Light Pink

£27.00

~~£109.95~~

You save 75%

Amelita Midi Dress

Long Sleeve Knot Detail Dress in Cream

£41.00

~~£69.95~~

You save 41%

5.0(2)

Rachel Maxi Dress

Sweetheart Neckline Jacquard Front Split Dress in Pink

£89.95

4.3(3)

Cartia Midi Dress

Velvet Strapless Bodycon Dress in Wine

£28.00

~~£89.95~~

You save 69%

Francis Maxi Dress

Halter Ruched Backless Dress in Blue

£26.00

~~£89.95~~

You save 71%

4.8(21)

Dangerous Woman Maxi Dress

Plunge Thigh Split Dress in Black

£28.00

~~£99.95~~

You save 72%

4.8(85)

Clara Maxi Dress

Scoop Neck Tie Back Fitted Sequin Dress in Pink

£79.00

~~£129.95~~

You save 39%

4.6(5)

Brailey Midi Dress

Thigh Split Strapless Dress in Pink Jacquard

£69.95

4.8(41)

Aiyana Midi Dress

Halter Neck Satin Dress in Black

£43.00

~~£89.95~~

You save 52%

4.9(8)

Brailey Midi Dress

Thigh Split Strapless Dress in White Jacquard

£53.00

~~£69.95~~

You save 24%

4.8(41)

Adele Maxi Dress

Strappy V Neck Ruffle Tiered Dress in Regency Print

£38.00

~~£99.95~~

You save 62%

5.0(1)

Karina Maxi Dress

Off Shoulder Corset Bodice Lace Up Back Dress in Wine

£49.00

~~£89.95~~

You save 46%

5.0(1)

Terri Midi Dress

Diamante Square Neck Bodycon Dress in Nude

£51.00

~~£169.95~~

You save 70%

4.5(2)

Sabine Maxi Dress

3D Sequin Floral Strapless in Sky Blue

£81.00

~~£139.95~~

You save 42%

Ruby Maxi Dress

Halter Scoop Neck Low Back Bodycon Dress in Coral

£89.95

4.8(45)

Alanna Maxi Dress

Off Shoulder Ruched Mesh Dress in Black

£89.95

4.8(37)

Marcelina Midi Dress

Sweetheart Neck Bodycon Dress in Off White

£37.00

~~£79.95~~

You save 54%

5.0(2)

Rania Maxi Dress

Contrast Lace Bodice Bias Cowl Drop Waist Dress in Dark Pink

£33.00

~~£89.95~~

You save 63%

4.9(105)

Tessa Maxi Dress

Square Neck Ruched Side Bodycon Dress in Lemon

£43.00

~~£89.95~~

You save 52%

4.9(16)

Maila Maxi Dress

Draped Cowl Neckline Dress in Maila Red Floral Print

£89.95

Debina Midi Dress

Sweetheart Neckline Short Sleeve Dress in Yellow

£89.95

4.8(8)

Sylvana Maxi Dress

Cowl Halter Neck Bodycon Dress in Baby Pink

£53.00

~~£89.95~~

You save 41%

5.0(15)

Demieh Midi Dress

Front Cut Out Long Sleeve Dress in Black

£51.00

~~£69.95~~

You save 27%

4.9(51)

Showing 691 - 720 of 1144 Products

Lara Midi Dress

Oriella Maxi Dress

Helaina Midi Dress

Francis Maxi Dress

Eleonor Maxi Dress

Trish Maxi Dress

Evie Maxi Dress

Ari Mini Dress

Amelita Midi Dress

Rachel Maxi Dress

Cartia Midi Dress

Francis Maxi Dress

Dangerous Woman Maxi Dress

Clara Maxi Dress

Brailey Midi Dress

Aiyana Midi Dress

Brailey Midi Dress

Adele Maxi Dress

Karina Maxi Dress

Terri Midi Dress

Sabine Maxi Dress

Ruby Maxi Dress

Alanna Maxi Dress

Marcelina Midi Dress

Rania Maxi Dress

Tessa Maxi Dress

Maila Maxi Dress

Debina Midi Dress

Sylvana Maxi Dress

Demieh Midi Dress

Frequently Asked Questions

Can I wear a midi dress to a formal event?

Can I wear a sleeveless dress to a formal wedding?

How do I choose a formal dress for prom?

Does Showpo offer free delivery in the UK? Are there plus sizes available?

Continue Shopping