The short answer: mesh for a lighter feel, microfibre for a smoother finish
Both the So Soft Mesh Brief and The Flex Brief are black, mid-rise everyday briefs from Lemonade Dolls, but they are built from different fabrics and offer different levels of coverage. The So Soft Mesh Brief is made from a semi-sheer stretch power mesh (73% recycled polyamide, 27% elastane) with medium bum coverage, while The Flex Brief uses a soft microfibre fabric with full bum coverage and lace trim at the waist and inner leg. If you want a light, breathable feel with a bit of sheer texture, the Mesh Brief is the one. If you prefer a smooth, opaque finish that sits invisibly under clothing, The Flex Brief is the better match.
Fabric and construction: what each brief is made of
- So Soft Mesh Brief - Black: Made from 73% recycled polyamide and 27% elastane, with a semi-sheer stretch power mesh. This blend gives the Mesh Brief its lightweight, breathable stretch and a subtly sheer look.

So Soft Mesh Brief - Black - The Flex Brief - Black: Crafted from ultra-soft microfibre fabric with delicate lace trim at the waist and inner leg. Microfibre provides a smooth, opaque surface, while the lace adds a decorative detail without compromising the invisible finish under clothes.

The Flex Brief - Black
Coverage and fit: medium vs full bum coverage
The most noticeable difference is how much they cover. The So Soft Mesh Brief has medium bum coverage, which gives a flattering, functional fit with a little more cheek than a full-coverage style. The Flex Brief offers full bum coverage, so it covers more and feels more secure if you prefer extra fabric. Both sit at a mid-rise waist, so they should rest at a similar point on your hips, but the Flex Brief's full coverage may feel more substantial overall.
- So Soft Mesh Brief: Medium bum coverage; mid-rise waist; lightweight and breathable.
- The Flex Brief: Full bum coverage; mid-rise waist; smooth microfibre that sits invisibly under clothing.
Sizing: which sizes are available for each
- So Soft Mesh Brief - Black: Available in sizes 6, 8, 12, 16, 18, 20, 22 and 24. This range covers many sizes, but note that size 10 and 14 are not listed for the Mesh Brief.
- The Flex Brief - Black: Available in sizes 6, 8, 10, 12, 14, 16, 18, 20, 22, 24 and 26. The Flex Brief offers a more continuous size run, including sizes 10, 14 and 26, which may be helpful if you fall between the sizes offered in the Mesh Brief.
How they feel and perform under clothing
The So Soft Mesh Brief is described as ultra-light and breathable, with a soft stretch mesh that moves with you. Its semi-sheer fabric means it may show through very tight or light-colored clothing, but under dark or loose garments it adds a subtle textured look. The Flex Brief, by contrast, is designed with a smooth, invisible finish under clothing, so it is a safer choice for fitted dresses, trousers or anything you want a clean line under. The lace trim on the Flex Brief is decorative but sits at the waist and inner leg, so it should not create bulk.
Style and care considerations
Neither product record includes specific washing instructions, so always check the care label on the garment you receive. Both are made from stretch fabrics, so a gentle wash cycle and avoiding high heat will help maintain their fit and finish. The Mesh Brief's sheer fabric may be more delicate, while the Flex Brief's microfibre is generally robust but still benefits from careful handling.
- So Soft Mesh Brief: Pair with the matching bralette for a coordinated Lemonade look, or mix with lace or colour-pop tops. The semi-sheer texture makes it a statement piece as well as an everyday brief.
- The Flex Brief: A discreet everyday essential that works under any outfit. The lace trim adds a refined touch, but the smooth microfibre keeps it practical for daily wear.
Which black brief should you choose?
Choose the So Soft Mesh Brief if you want a lighter, breathable feel with a hint of sheer texture and medium coverage. It suits those who like a more playful, styled look and don't mind a little less coverage. Choose The Flex Brief if you prefer full coverage, a smooth opaque finish that disappears under clothes, and a more extensive size range. Both are mid-rise and designed for everyday comfort, so your decision comes down to fabric preference, coverage and the sizes available in each style.



