- Source rank
- Rank 19
- Period
- Verification snapshot (2026-09-11; the official page updates in real time)
- Checked on
- 2026-09-11

UNIQLO Boys' AIRism Briefs, 3-Pack
Japan is 54.2% cheaper
Save about US$6.99Japan tax-free estimate vs. the US list price
UNIQLO Japan official online store
¥900 · pre-tax
Incl. tax ¥990 ≈ US$6.50
2026-09-15 · In stock when checkedJapan store ↗UNIQLO US official online store
2026-09-18 · In stock when checkedthe US store ↗Without a tax refund:Japan is 49.6% cheaper, save about US$6.40
Tax-free sales require eligibility; excludes card fees, shippingand tax-refund handling charges.The two tax bases differ or are unstated.
1 JPY = 0.006564 USD · reference rate 2026-09-10
Estimate my cost FX, tax refund, card fees
My shopping cost
Enter a price and it converts. Tax-free, card fees and other costs can follow this trip.
02 / Tax-free & refund
03 / Same-item comparison
Filled from UNIQLO US official online store · excl. tax · checked 2026-09-18.Add local tax before treating this as a comparison.
Spec and price sources Model, match basis, check date
- Original name
- Boys' AIRism Briefs, 3-Pack
- Model
- 商品編號 478657|日本品名 BOYS エアリズムボクサーブリーフ/3枚組/前閉じ|61 BLUE
- Spec
- Item No. 478657; Japan color 61 BLUE; Japan sizes 100 (ages 3-4)/110 (ages 4-5)/120 (ages 6-7)/130 (ages 8-9)/140 (ages 10-11)/150 (ages 12-13)/160 (age 14); Taiwan sizes 100cm/110cm/120cm/130cm/140cm/150cm/160cm; Taiwan page color swatches 478657/58 DARK GREEN/481967/58 DARK GREEN/481967/61 BLUE; Japan page material This item ships with one of the following fabric compositions at random; you cannot choose which one.<br>478657, 481967: body: 91% polyester, 9% spandex (91% recycled polyester fiber used)/waist part: 48% nylon, 42% polyester, 10% spandex<br>485392: body: 91% polyester, 9% spandex (91% recycled polyester fiber used)/waist part: 50% nylon, 42% polyester, 8% spandex; Taiwan page material body: 91% polyester (recycled polyester), 9% spandex/waist: 48% nylon, 42% polyester, 10% spandex
- Same-item basis
- This style's primary item no. on the Taiwan site is 481967, which differs from Japan's 478657, so searching the Taiwan site by the Japan item no. will always return no results; this pass instead indexed the whole site via the official sitemap and found the Japan item no. 478657 listed alongside it on the page for productCode u0000000052947. The Taiwan page's primary item no. is 481967, the title also lists the Japan item no. 478657, and the colour swatches include 「478657 / 58 DARK GREEN」. The Japan product page's material field also states 「478657, 481967」as different lots of the same composition. Both regions are a 3-piece set, sized 100–160cm. Because the primary item numbers differ, this is conservatively logged as the same specification. US price 2026-09-18: US details API E478657-000 AIRism Boxer Briefs | 3 Pairs base $12.9 tax EXCLUSIVE
| Source | List price | Quote note | Checked on |
|---|---|---|---|
| UNIQLO Japan official online store ↗ | ¥990 | 61 BLUE official online store, list price incl. tax · incl. tax In stock when checked | 2026-09-15 |
| UNIQLO US official online store ↗ | US$12.90 | official list price · excl. tax In stock when checked | 2026-09-18 |
Comparing prices for the same item number on UNIQLO's official online stores in both markets: Japan ¥990, Taiwan NT$290. Taiwan offers free store pickup, plus free home delivery on orders over NT$1,500; Japan shipping, tax refunds, and card fees are not included.
Japanincl. tax、the USexcl. tax. Prices are a dated snapshot; stock and checkout prices are the retailer’s. The gap percent uses the the US list price as the denominator.
Tax-free estimate: Japan price incl. tax ÷ 1.1, rounded to the yen.Traveler tax-free eligibility required; the amount refunded follows the retailer.
FX: Bank of Taiwan spot selling reference rate; the US dollar is cross-converted · 2026-09-10 23:22:00+08:00 · FX source ↗
Full gap analysis ↗Which lists recommend it?
Original ranks, periods and check dates stay visible, with links to each source. Creator recommendations are listed separately; views are not a product score.