Sizing Information

Mama Jeanius maternity jeans are uniquely tailored to adapt throughout the whole of your pregnancy, whilst remaining stylish and comfortable.

Mama Jeanius jeans are designed to last your entire pregnancy, simply order in your pre-pregnancy size.

Country Size Comparison

Country  Size
UK 8 10 12 14 16
US 4 6 8 10 12
France 36 38 40 42 44
Germany 34 36 38 40 42
Italy 40 42 44 46 48
Japan 7 9 11 13 15
Denim 25-26 27-28 29-30 31-32 32-34

Leg Length

Mama Jeanius jeans come in the following leg lengths:

Petite: 29 inches (74cm)

Regular: 31 inches (79cm)

Long: 33 inches (84cm)

Waist Sizing

Our jeans come with the following waist sizing (listed in cm and inches)

Our Mama Joy jeans (under the bump) show the waist size  with the internal adjusters on their tightest setting (in early pregnancy) and also for their loosest setting. They can be adjusted at 1 inch intervals as your baby grows.

UK Size Joy (Mechanism
fully closed)
Joy (Mechanism
fully open)
Life Love
6 68cm/ 27″ 84cm/ 33″ x x
8 73cm/ 29″ 89cm/ 35″ 77cm/ 30″ 77cm/ 30″
10 78cm/ 31″ 94cm/ 37″ 82cm/ 32″ 82cm/ 32″
12 83cm/ 33″ 99cm/ 39″ 87cm/ 34″ 87cm/ 34″
14 88cm/ 35″ 104cm/ 41″ 92cm/ 36″ 92cm/ 36″
16 93cm/ 37″ 109cm/ 43″ 97cm/ 38″ 97cm/ 38″
18 x x x 102cm/ 40″

Mama Jeanius Cut

Skinny: The skinny is cut as a true skinny. The skinny looks great tucked into boots, or wear with ballet flats or even heels.

Classic: The straight leg jean, it can be worn with any kind of footwear: heels, flats, pumps… and you can also tuck them into boots. Formal enough to wear for work, with the right denim you can make the classic leg look dressy.

Boot cut: Flaring out gently towards the hem, there’s nothing better for balancing out your hips and bottom.

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