
Isabella Oliver
Grayson Maternity Dress
7.2/10 overall£129.00
A tencel-blend wrap-style maternity dress in deep khaki, from Isabella Oliver's sustainable core range.
The verdict
The Grayson dress is an £89 tencel-blend wrap-style dress with a ruched, bump-adjustable waist that drapes and photographs well. Best for parents wanting one occasion-ready piece for events, work do's or photos. Skip it if you need an everyday, budget-friendly basic — it's not built for constant washing and wear.
The ruched waist panel is doing real work here — it genuinely adjusts as your bump grows rather than being cut for one fixed size, so this dress earns its keep across a wider stretch of pregnancy than most maternity dresses, which tend to be sized more narrowly for a specific trimester. The eco-friendly jersey fabric also has a noticeably better drape and feel than typical maternity basics, which shows when you actually put it on — it photographs well, holds its shape through a full day of wear, and does not look like "maternity wear" in the slightly apologetic sense that phrase sometimes implies.
Against the JoJo Maman Bébé leggings in this category, this is a fundamentally different kind of purchase. The leggings are a repeat-wear everyday basic you can throw in the wash constantly without a second thought; this dress is an investment piece for occasions — work events, dinners, photos — where you want to look put together rather than simply comfortable. Both have their place, and most people end up owning both rather than choosing one over the other, but if you are stocking a maternity wardrobe on a budget, this is not where that budget goes first.
This suits people who want at least one dress that photographs well and dresses up properly for the occasions pregnancy brings — baby showers, work events, anniversary dinners — and who are willing to pay a premium for fabric quality and a flattering, adjustable cut. If your priority is maximising everyday comfort on a budget rather than having an occasion-ready piece, the leggings (or a cheaper maternity basic) are the more sensible first purchase.
The clear limitation is versatility: at £89 it is a genuine investment rather than an everyday basic, and it is simply less practical if what you actually need is something to wear and wash constantly through the working week. Think of it as the one good dress in a maternity wardrobe built mostly around cheaper, more washable staples, rather than a piece you will reach for daily.
Is the Grayson Maternity Dress worth it?
- Ruched waist genuinely adjusts as the bump grows
- Fabric quality and drape above typical maternity wear
- Dresses up well for occasions and photos
What are the downsides of the Grayson Maternity Dress?
- Expensive as an everyday-wear basic
- Less practical for constant washing and wear
- Best suited to occasions, not daily rotation
Specs
- Fit
- Ruched, bump-adjustable waist
- Care
- Machine washable
- Fabric
- Eco-friendly stretch jersey
- Length
- Midi
- Suitable through
- Second and third trimester
- Colours available
- Multiple, seasonal range
How we scored it
Comfort & Bump Accommodation
How comfortably it fits and adjusts as the bump grows.
Ruched waist genuinely adjusts as the bump grows.
Versatility
How much everyday use you get out of it, not just occasion wear.
More of an occasion piece than an everyday basic.
Value for Money
Cost relative to what you get.
£89 is a genuine investment piece.
Weighted by importance for this category — see our editorial policy for how we test.
How this review was done
We haven't used the Grayson Maternity Dress ourselves yet. This review is built from Isabella Oliver's published specifications and product information, and scored the same way as everything else on the site. We'll update it, and the badge above, once we've tested it hands-on.
How it compares
![]() | ![]() | ![]() | ![]() | |
|---|---|---|---|---|
| Price | £129.00 | £179.00 | £28.00 | £16.99 |
| Overall score | 7.2/10 | 6/10 | 7.2/10 | 8.4/10 |
| Care | Machine washable | Machine washable at 30°C, hand wash recommended | — | — |
| Fabric | Eco-friendly stretch jersey | — | Stretch denim | Stretch jersey, machine washable |
| Sizing | — | — | UK 8-20 | UK 6-20, true to pre-pregnancy size |
Frequently asked questions
Is the Isabella Oliver maternity dress worth £89?+
Yes if you want at least one dress that looks put-together for occasions — the ruched waist genuinely adjusts as the bump grows, and the fabric quality and drape are noticeably better than typical maternity basics. It's not the best choice if you need an everyday wardrobe basic on a budget, since it's a genuine investment piece.
How does it compare to the JoJo Maman Bébé leggings?+
It's a different kind of purchase — the leggings are a cheap, washable everyday basic you throw in the wash constantly, while this dress is an investment piece for occasions like baby showers, work events and dinners. Most people end up owning both rather than choosing one over the other.
Can I wear the dress throughout pregnancy?+
It's designed for the second and third trimester, with a ruched waist panel that genuinely adjusts as the bump grows rather than being cut for one fixed size, which is why it earns its keep across a wider stretch of pregnancy than many maternity dresses.
Is it practical for everyday wear?+
Not really — at £89 it's a genuine investment rather than an everyday basic, and it's less practical than cheaper pieces if you need something to wash and wear constantly through the working week. It's better thought of as the one good dress in a wardrobe built mostly around cheaper staples.

Reviewed by
Sepehr
Software engineer, soon-to-be dad, uncle to four — the tech-obsessed half of the two of us testing this stuff. Currently building this site with my wife, ahead of our own baby arriving.


