Fit Guide

Nyssa's sizing is based on standard maternity sizing. If you wear a Medium in your maternity pants, we recommend you purchase a S/M of Fourthwear Underwear.

If you're between sizes (you sometimes wear a Medium and sometimes a Large) we recommend going with the smaller of the two sizes as Fourthwear Underwear is supremely stretchy.


FourthWear™ Underwear

XXS / XS S / M L / XL 1X / 2X 2X / 3X
Pant Size 0-2 4-8 10-16 18-22 22-26



FourthWear™ Bralette

XXS / XS S / M L / XL 1X / 2X 2X / 3X
Top Size 0-2 4-8 10-16 18-22 22-26



VieWear™ Underwear

XS S M L XL 1X
Pant Size 0-2 4-6 8-10 12-14 16-18 20-22