Finding underwear in very small sizes is often harder than it seems. Most brands start at XS, and even that XS often matches what used to be a S. Women who wear a size 00 or 0 in pants, or whose hip measurement is under 80 cm, regularly end up with underwear that gapes at the back, waistbands that roll because they're too wide, or cuts that simply don't fit their frame. The LICA Wear range goes down to 2XS in every style. This guide explains who this size fits, how to tell if it's the right size, and which cut to choose for your body shape.
Who the 2XS really fits
The 2XS size at LICA Wear corresponds to a 00 or 0 North American numeric pant size, which represents an approximate hip measurement of 80 cm or less. It's a real size worn by a significant segment of the population, including petite women, naturally slim women of any height, and some young adults transitioning between junior sizes and standard women's sizes.
It isn't an exceptional or marginal size: it's simply a size most lingerie brands choose not to produce, to keep their range simple. The concrete result for the women who wear it is a very limited selection, often restricted to specialty lingerie brands or junior sizes that don't meet an adult's needs.
The real problems with standard underwear in very small sizes
Women who wear a very small size and settle for a standard XS run into specific problems that have nothing to do with product quality: it's purely a matter of proportions.
A waistband too wide for the waist
A band designed for a 65 to 70 cm waist placed on a 58 cm waist can't hold properly. It floats, creates folds, and tends to roll over on itself during the day. It isn't a flaw in the underwear: it's a question of sizing.
A cut that gapes at the back
The distance between the hips and the lower back is proportional to your measurements. Underwear calibrated for 88 cm hips worn on 78 cm hips leaves excess fabric at the back, which creates an unflattering and uncomfortable gaping effect. No fabric, however stretchy, can make up for excess material.
Seams that don't fall in the right place
On underwear with seams, the side seams and the gusset are positioned for a standard-size anatomy. On a slimmer frame, these seams fall out of place, creating friction in the wrong spots and reducing overall comfort.
Seamless underwear eliminates this last problem by design: with no side seams or edging, there's no fixed point that can end up in the wrong place. The fabric adjusts to the body rather than the other way around. To understand why this construction makes a difference every day, the complete guide to LICA Wear invisible underwear explains all the advantages of the seamless cut.
How to tell if 2XS is the right size
The basic rule at LICA Wear is simple: go by your numeric pant size rather than S, M, L labels. For the 2XS, that means a size 00 or 0 in pants.
If you're usually an XS in other lingerie brands, it's worth checking the exact measurements rather than going straight for a LICA Wear XS. Conversions between brands vary considerably, and some XS sizes on the market actually correspond to a S or even a M in real hip measurement.
The most reliable sign that underwear is too big: a waistband that rolls or floats at the waist, and excess fabric that bunches at the back. Conversely, underwear in the right size naturally stays in place all day, with no adjusting. Detailed pointers for telling whether underwear is too small or too big are in the article on how to tell if your seamless underwear is the right size.
Which cut to choose in 2XS for your body shape
Every cut in the range is available in 2XS. Choosing between them depends less on size than on body shape and personal preference.
For a straight frame or less defined hips
The seamless thong is often the favorite cut for straight frames: its minimalist construction suits these proportions well without adding bulk. The high-waisted thong adds gentle support over the lower belly while keeping the same discreet profile at the back.
For an A-shaped frame or more defined hips
Slim women whose hips are relatively more defined than the rest of their frame, a common proportion at any overall size, often find that the seamless Brazilian or the seamless bikini briefs suit them better: they offer more coverage at the back and follow the curve of the hips more closely. The complete guide to choosing your cut by body shape is in the article on which seamless underwear to choose for your body shape.
For office days or long hours sitting
The high-waisted seamless bikini briefs are the most versatile cut for structured days: generous coverage at the back and gentle support over the lower belly, without compression. They stay in place without adjusting even when sitting for long periods, which is especially useful for slim frames, where slightly oversized underwear can slip at the slightest opportunity.
The 2XS and fitted clothing
Women in very small sizes often wear fitted clothing or tailored cuts to avoid looking swamped by their clothes. These are precisely the garments that most easily reveal underwear seams and lines. The laser-cut construction of the LICA Wear range completely eliminates edging and side seams, which makes the underwear invisible under slim pants, bodycon dresses and fitted sweaters.
Pointers for choosing your underwear color by outfit are in the article on underwear under light and sheer clothing.
Frequently asked questions about the 2XS
Does the LICA Wear 2XS match other brands' XXS?
Not necessarily. Size equivalents vary a lot between brands and countries of origin. Some XXS sizes on the market correspond to an XS or even a S in actual measurements. The most reliable way to check is to start from your numeric pant size: if you wear a 00 or a 0, the LICA Wear 2XS is your size.
Are all cuts available in 2XS?
Yes. The thong, the high-waisted thong, the Brazilian, the classic bikini briefs and the high-waisted bikini briefs are all available in 2XS. That's the entire permanent range, no exceptions.
If I'm between 2XS and XS, which should I choose?
For seamless underwear, the usual rule applies: when in doubt between two sizes, take the smaller one. The fabric, with 37% elastane, adapts to the body without squeezing, whereas a size too big can sag or roll. Slightly snug underwear stays in place; underwear that's too big doesn't.
Underwear in very small sizes shouldn't be any harder to find than any other size. The LICA Wear range goes from 2XS to 3XL in every style, precisely because both ends of the size curve are often the least well served by the market. All the styles available in 2XS are in the complete seamless underwear collection.
