Easy maternity size guide

We've designed our maternity clothes in line with your pre-pregnancy clothing size for extra ease… giving you one less thing to think about. Many pieces are infused with our signature ruching and wrapping for a flawless fit at every stage.

• Refer to the chart below. It's really that easy.
• Take your pre-pregnancy clothing size, and look across the chart to find your Isabella Oliver size.
• So, if you were usually a UK 12 before you were pregnant, just order an Isabella Oliver size 3, or if you were a UK 14 before you were pregnant, then our size 4 is the size for you.
• If you are in doubt please check against our measurement chart to find your correct size against your body measurements.

Isabella Oliver Clothes Sizing Guide

Isabella Oliver Maternity size	0	1	2	3	4	5	6
UK Pre-pregnancy size	4-6	8	10	12	14	16-18	20
US Pre-pregnancy size	0-2	4	6	8	10	12-14	16
EU (FR) Pre-pregnancy size	32-34	36	38	40	42	44-46	48
AU/NZ Pre-pregnancy size	6-8	10	12	14	16	18-20	22

Isabella Oliver Maternity Size	Small		Medium		Large		X Large
UK Pre-pregnancy size	8	10	12	14	16-18		20
US Pre-pregnancy size	4	6	8	10	12-14		16
EU/FR Pre-pregnancy size	36	38	40	42	44-46		48
AU/NZ Pre-pregnancy size	10	12	14	16	18-20		20

Isabella Oliver Maternity Measurement Guide

Isabella Oliver Pre Pregnancy	Bust		Chest		Waist		Top Hip		Low Hip		Arm
	cm	in	cm	in	cm	in	cm	in	cm	in	cm	in
0	83	33	78	31	65	25½	77	30½	92	36¼	54.4	21½
1	85.5	34	80.5	31½	67.5	26½	79.5	31¼	94.5	37¼	54.7	22¾
2	88	34½	83	33	70	27½	82	31¼	97	38¼	55	21½
3	93	36½	88	34½	75	29½	87	34¼	102	40¼	55.6	21¾
4	98	38½	93	36½	80	31½	92	36¼	107	42	56.2	22
5	105	41	100	39½	87	34¼	99	99	114	45	56.8	22¼
6	112	44	107	42	94	37	106	42	121	48	57.4	22½

*All measurements are based on our standard size 2/UK size 10, 173cm/5' 8" model.

Isabella Oliver Trouser Lengths

Isabella Oliver	cm	in
Regular	81	32
Long	86	34

Isabella Oliver Jeans Sizing Guide

Isabella Oliver Maternity sizing	1	2	3	4	5	6
UK Pre-pregnancy size	8	10	12	14	16-18	20
Isabella Oliver Maternity Jeans sizing	25	27	29	31	33	35

Expecting Twins?

If you are pregnant with twins, we recommend you go up a size. So, if you were a size 12 before you were pregnant, order an Isabella Oliver size 4.

Clothing measurements in centimeters and inches can be found on our individual product pages. If you require a little more information, just call PHONE_NUMBER or email EMAIL_ADDRESS, and we'll be delighted to help you.

• SLEEVE

  Measure from the armhole seam at shoulder point to the hem of the cuff.

• WAIST

  This is the slimmest part of your natural waistline. Above the naval and below the ribcage.

• INSIDE LEG

  The measurement betwen the top of your leg (crotch) to the ankle.

• LENGTH

  These are taken from the highest part of the garment, either the shoulder seam or the centre back neckline to the hem.

• BUST

  Measure around the fullest part of your bust.

• TOP HIP

  Stand with your legs together and Measure around your top hip which should be approximately 10cm below your natural waist.

LOW HIP

Stand with your legs together and measure around the fullest part of your hips at the top of your legs. be approximately 23cm below your natural waist.

Measuring your bra size
A well-fitting bra is a wardrobe necessity, whether you are pregnant or are nursing. Follow our simple guide to find your perfect fit. Click here

Hosiery sizing
Isabella Oliver Luxe Opaque Tights are essential for your maternity wardrobe during the colder months. To find your size for the ultimate comfort click here.

Nearly Nude Sizing

	S/M	M/L
UK	8-12	14-18
US	4-8	10-14
EU	36-40	42-46

Spanx Sizing

Use the below size chart for the Mama Spanx range. Use your pre-pregnancy weight to work out your size (click on the picture to enlarge).