If you are trying to work out the best On Gossamer pieces to buy first, the short answer is that the range splits cleanly by job: mesh for invisibility, Peruvian pima cotton for all-day comfort, and two soft bras that do different things under different clothes.
Below are the picks that make the most sense as a first order, what the brand actually says about each one, and which multi-pack to reach for once you know your silhouette. Everything here comes from On Gossamer's own product descriptions, so there are no invented claims.
Best overall: Gossamer Mesh Hip-G Thong
This is the one On Gossamer itself calls its best-selling thong, and it is the clearest expression of what the brand does. Superfine mesh, the signature delicate edge, and a fit the brand describes as so perfect it is easy to forget there is anything there at all.
Three specifics are listed for it: a low-rise fit, ultra lightweight Italian Mesh, and air dry in under 8 minutes. The fabric is 100% nylon. Sizing runs XS/S, S/M, M/L and L/XL, and colours include Delphinium Blue and Country Blue.
Why it tops the list: it is the piece that solves the most common underwear complaint, which is visible lines under fitted clothing, without swapping into thick seamless microfibre. If you have been hunting for genuinely invisible options, it belongs on the same shortlist as the styles in our roundup of no show panties for leggings.
Best for everyday comfort: Cabana Cotton Hi-Cut Brief
The Cabana Cotton Hi-Cut Brief is the opposite pick and, for a lot of people, the better daily one. On Gossamer describes it as beyond soft and comfortable in Peruvian pima cotton, a favourite essential with a delicate crochet trim, in a lightweight silhouette that is perfect for everyday wear.
Fabric is 94% cotton with 6% spandex. Sizes run S to XL, and colours include Thistle and Deep Wisteria. The hi-cut leg line gives more coverage than the bikini without the bulk of a full brief, which is why it works under trousers and dresses alike.
If natural fibres are the deciding factor for you, this is the pick, and it sits comfortably alongside the labels in our guide to organic cotton and sustainable underwear brands.
Best bra: Cabana Cotton Unlined Underwire
Among the bras, the Cabana Cotton Unlined Underwire is the standout because of how much construction detail On Gossamer publishes about it. It is unlined and pad-free, with 2-ply moulded cotton and spandex cups and light underwire that the brand says naturally shapes and flatters.
The rest of the build: a plunging neckline, delicate flat elastic trimming along the edges for a smooth, seamless transition to the body, a tonal logo elastic accenting the bottom band, soft 2-ply cotton and spandex wings for breathable support, and fully adjustable straps finished with shiny silver hardware.
It is the right pick if you want shape without padding. It is the wrong pick if you want lift and structure, in which case look at firmer categories entirely.
Best under fitted tops: Next To Nothing Micro T-Shirt Bra
The Next To Nothing Micro collection is On Gossamer's smooth microfibre family. The T-Shirt Bra is 74% nylon and 26% elastane, and the brand credits its 4-way stretch and lightweight microfibre with taking comfort to a whole new level.
Practical details: fit flexibility, narrow straps and light elastic, in band sizes 32, 34 and 36 with cups from A to DDD. That cup range is the widest in the line-up, so it is also the most likely to fit if the cotton bra sizing does not work for you.
Pick this one when the top is thin, ribbed or pale and you want nothing showing through. Pick the cotton unlined bra when breathability matters more.
Best value: the 3-packs
Multi-packs are where On Gossamer makes the most sense as a first purchase, because they let you test a silhouette across a full week rather than a single day.
- Gossamer Mesh Hip-G Thong 3 Pack in Heavenly Floral, Delphinium Blue and Black, for the bestselling mesh thong.
- Gossamer Mesh Hip Bikini 3 Pack in the same three colours, described by the brand as sheer mesh offering sexy coverage and comfort in an invisible silhouette.
- Gossamer Mesh Hi-Cut 3 Pack in Black, Champagne and Delphinium Blue, for full coverage in the same invisible mesh.
- Cabana Cotton Bikini 3 Pack in White, Champagne and Deep Wisteria, for the natural-fibre route.
- Cabana Cotton Hip-G Thong 3 Pack in the same three cotton colours.
All five packs are live at On Gossamer, and the colour trios repeat across silhouettes, so it is easy to keep a consistent palette.
Best print pick: Triple Mesh Hip-G
If the plain colours feel too plain, Triple Mesh is where On Gossamer puts its prints. The Triple Mesh Hip-G is 100% nylon, trimmed in the signature delicate edge, and described as sexy and comfortable in a lightweight mesh thong silhouette.
Prints include Heavenly Floral, Moody Floral and Falling Petals, and the matching Triple Mesh Hip Bikini offers the same prints with what the brand calls sexy coverage and comfort in a super cute bikini silhouette. Buying the thong and bikini in one print is the easiest way to get a coordinated set without buying a matching bra.
One layering piece worth adding
The Cabana Cotton Reversible Cami is the quiet pick. Same Peruvian pima cotton at 94% cotton and 6% spandex, same delicate crochet trim, described by On Gossamer as a favourite layering essential. Reversible means one neckline for tucking under a blazer and another for wearing on its own.
It is the piece that turns a set of underwear into a full soft-basics drawer, which is the same logic behind our picks in the best lingerie brands roundup.
What to skip, and why
Two honest caveats before you order. First, if you need structured support or padding, none of these bras deliver it. The Cabana Cotton style is explicitly unlined and pad-free, and the Next To Nothing is a soft microfibre t-shirt bra rather than a lift-and-shape design. Both are chosen for feel, not architecture.
Second, if you will not hand wash, buy elsewhere. Every product in the range carries the same care line, and fine Italian mesh does not survive a machine cycle intact. The mesh styles at least air dry in under eight minutes, so the effort is front-loaded into a two-minute rinse rather than an overnight wait on the drying rack.
The one thing people over-buy is print. The Triple Mesh florals are the prettiest pieces in the catalogue and the ones that get worn least, which is why a single pair alongside a plain 3-pack is usually the right ratio rather than a drawer full of them.
How to choose in one minute
- Want invisible? Gossamer Mesh, in whichever cut you already wear.
- Want breathable? Cabana Cotton, hi-cut brief or bikini.
- Want print? Triple Mesh Hip-G or Hip Bikini.
- Want a bra with no padding? Cabana Cotton Unlined Underwire.
- Want a bra that vanishes under a t-shirt? Next To Nothing Micro.
One caveat applies to every item above: hand wash separately in cold water, line dry, low iron if needed. The mesh styles air dry in under eight minutes, so they are the low-effort half of the range.
Compare current colours and pack options at the On Gossamer store.