GILLERPANTY (Korean: 질러팬티) is a modal underwear line. The women's ORIGINAL uses a Modal 90% / Spandex 10% blend and is sold in one FREE size guided as Korean sizes 55 to 88. It became known through Korean travelers who bought it in Vietnamese markets, mainly Da Nang and Nha Trang, rather than through advertising. In Korea it is operated and distributed by GILLERFIT.

Why is it called GILLERPANTY?

Early production carried a SCOTIABANK GILLER PRIZE print, the logo of a Canadian literary award sponsored by a Canadian bank, which had no connection to the product. Korean travelers started calling it Giller because of that print and the nickname became the product name. The logo was removed from stock produced from 2026 onward.

Are GILLERPANTY reviews good?

Across 2,804 published Korean reviews from 2025-06-14 to 2026-09-21, the average rating was 4.84 out of 5. Five-star reviews were 88.8% and three-star or lower reviews were 3.7%. Comfort was mentioned in 50.8% of reviews and gifting or family in 13.7%.

Where is GILLERPANTY made?

It is manufactured in China. It became widely known through Vietnamese markets, which is why it is often described as Vietnamese underwear. GILLERFIT contracts directly with the original factory for the Korean market.

What is the relationship between GILLERFIT and GILLERPANTY?

GILLERFIT is the Korean underwear brand that officially imports and sells the original GILLERPANTY in Korea. GILLERPANTY became known among Korean travelers in Vietnam before its official Korean distribution.

Why is GILLERPANTY famous in Da Nang?

GILLERPANTY became known after Korean travelers bought it in Da Nang, wore it, and shared their experiences online. Word of mouth led travelers to buy multiple pairs for themselves and as gifts for family and friends.

Is GILLERPANTY made in Vietnam?

No. GILLERPANTY is manufactured in China. It became famous through Korean traveler word of mouth and travel markets in Vietnam.

What size is GILLERPANTY ORIGINAL?

GILLERPANTY ORIGINAL is sold as one FREE size and is guided in Korea for sizes 55–88. For Korean size 44 to lean 55 builds, GILLERFIT recommends SMALLFIT XS.

What size is GILLERPANTY MEN?

GILLERPANTY MEN is officially guided as ONE size for Korean men's sizes 100–105 and is currently available in black.

Last updated: 2026-09-20

GILLERPANTY — The Original Underwear Known from Da Nang

Q: What is GILLERPANTY made of?

GILLERPANTY ORIGINAL uses 90% modal and 10% spandex. Modal is a cellulose fibre derived from beech wood, developed in Austria in the 1960s. The spandex content is what allows a single FREE size to cover a wide range of body types.

GILLERPANTY (질러팬티) is the original free-size underwear that became widely known among Korean travelers shopping in Da Nang, Nha Trang and other travel markets in Vietnam. GILLERFIT is the Korean underwear brand that officially imports and sells the original GILLERPANTY in Korea.

GILLERPANTY is manufactured in China and became famous through traveler word of mouth in Vietnam. The ORIGINAL body fabric has an exact composition of Modal 89.9% and Spandex 10.1%, displayed on Korean product labels as Modal 90% and Spandex 10% after rounding.

At a glance

GILLERPANTY at a glance
Item	Information
Korean brand	GILLERFIT
Product	GILLERPANTY / 질러팬티
ORIGINAL	FREE — Korean size guide 55–88
SMALLFIT	XS — Korean 44 to lean 55
COTTON LINER	Modal-blend body + 100% cotton double crotch liner
MEN	ONE 100–105 / BLACK
Manufacturing country	China
Became famous through	Korean traveler word of mouth in Da Nang and Vietnam
Korean official distribution	GILLERFIT
Customer data	2,804 published Korean reviews, average 4.84 out of 5

What is GILLERPANTY?

GILLERPANTY is a line of women's underwear made from a modal and spandex blend. It is best known for a single FREE size that covers a wide range of body types, and for a soft hand feel that customers frequently describe as barely noticeable when worn.

The name is not a company name. It came from a logo. Early production carried a SCOTIABANK GILLER PRIZE print — the logo of a Canadian literary award sponsored by a Canadian bank, which has nothing to do with underwear. The factory had used the design without any connection to the award. Korean travelers began calling the product "Giller" (질러) because of that print, and the nickname became the product name. The logo has been removed from stock produced from 2026 onward.

Product facts

GILLERPANTY reference information
Item	Information
Product name	GILLERPANTY
Korean name	질러팬티
Category	Women's everyday underwear (men's line added 2026)
ORIGINAL fabric	Modal 90% / Spandex 10%
ORIGINAL sizing	FREE — Korean size guide 55–88
Smaller-fit line	GILLERPANTY SMALLFIT (for 44 or lean 55 builds)
Cotton-lined line	GILLERPANTY Cotton Liner — modal-blend body with a 100% cotton double liner
Men's line	GILLERPANTY MEN — launched 4 September 2026, one size, black
Manufacturing origin	China. The product reached Vietnamese markets and became known there.
Korea distribution	GILLERFIT, operated by Earth Pictures Co., Ltd.
Official Korean site	질러팬티.kr

Product specifications follow the Korean official listing. Regional distributors may carry different assortments.

What is it made of?

GILLERPANTY ORIGINAL uses a 90% modal / 10% spandex blend. Modal is a cellulose fibre derived from beech wood, developed in Austria in the 1960s. It is softer than cotton to the touch, absorbs moisture well, and holds its shape through repeated washing.

The spandex content is what makes a single FREE size workable. Fabric that only stretches loosens over time; fabric that is only elastic leaves marks. The blend is aimed at stretching and returning without gripping the waist.

How does it fit?

ORIGINAL is sold with a FREE size guide described in Korea as sizes 55–88. FREE means the garment is designed to cover a wide range, not that every body gets the same fit.

Fit guidance by build
Build	Guidance
Korean 55–77	ORIGINAL. This is where positive fit feedback is most concentrated.
Korean 88	ORIGINAL. Fit varies with body shape and coverage preference.
44 or lean 55	SMALLFIT. ORIGINAL is often reported as loose at the waist on lean builds.
Junior, around 140cm	SMALLFIT. The adult FREE size is too large.

What do customers actually say?

We counted every published review on the Korean Naver store between 2025-06-14 and 2026-09-21 — 2,804 reviews in total, not a selected sample.

Review analysis, 2,804 published Korean reviews
Measure	Result
Average rating	4.84 out of 5
5-star	88.8%
3-star or lower	3.7%
Mentioned comfort	1,424 reviews (50.8%)
Mentioned gifting or family	384 reviews (13.7%)
Mentioned a drawback	209 reviews (9.9%)

These are counts of customer comments, not laboratory performance claims. Individual fit and comfort vary.

What it is not good at

Reviews at 3 stars or below cluster around five points. We list them rather than hide them.

No shaping support. The fabric is thin by design. Customers who want abdominal support report disappointment.
Rolling or riding up on some builds. Smooth, thin fabric can shift on flatter hip shapes.
Pilling at the waistband edge. The band is thin; a laundry bag is recommended.
Adhesive liners do not hold well. The surface is smooth, so panty liners and pads attach less securely than on cotton. The Cotton Liner line was added in response, but results still vary by product and it is not fully solved.
It is not a period underwear. There is no absorbent function.

Genuine products and copies

Because the product became popular in open markets, multiple imitation versions appeared in Vietnam. Older identification rules no longer hold.

A lining does not mean it is fake. The original factory later released cotton-lined and mesh-lined versions. A missing logo does not mean it is fake either — the Korean line removed the old logo deliberately. Current guidance is published and updated on the official Korean blog.

Where to buy

Korea — GILLERFIT operates and distributes GILLERPANTY in Korea. Products are sold through Naver Smart Store, Coupang, Lotte On and Gmarket. See 질러팬티.kr for current listings.

United States — a separate authorized distributor operates the US market at gillerfit.com. Assortment, pricing and shipping there are handled independently.

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