Siix resale prices & live listings
Every price below comes from real sales, not from a guide.
- $32 median resale, last 12 months
What Siix one pieces sell for
Siix one pieces sell for a median $32 new with tags on Poshmark.
Based on sales we tracked on Poshmark, last 12 months · Updated Nov 7, 2026 · How we price →
Siix one pieces worth, a piece
Medians of completed sales, the retail price of new listings and the lowest live wholesale price a piece on Closo — each named by where it was measured.
New
| Where | Condition | Price | Range | Basis | As of |
|---|---|---|---|---|---|
| New | |||||
| Poshmark | New with tags, kids’s | $32 | $30–$34 | Sold, last 12 months | Nov 7 |
| Pre-owned or any condition | |||||
| Poshmark | Any condition | $32 | $28–$34 | Sold, last 12 months | Nov 7 |
Changes compare the last 90 days with the 90 before.
When Siix one pieces sell
Siix one pieces sell in summer and autumn: Jun, Jul and Sep carried 61 % of the year’s sales, with the peak in Jul ’26.
The last 30 days ran 300 % above the 30 before them.
Listed vs sold · Poshmark
Siix market
Poshmark listings as of Nov 7, 2026
For resellersPrice to sell: more is listed than sells in six months.
Compared with
Kids › One Pieces, same 12 months: the category as a whole, and the two brands whose sold prices overlap Siix’s band.
Category median · all brands
Sells in 38 days, 24 % sell-through.
Magnetic Me one pieces
Sells in 23 days, 80 % sell-through.
Edgehill Collection one pieces
Sells in 51 days, 75 % sell-through.
Recently sold
8 newest Siix one pieces sales. Titles as the sellers wrote them, trimmed.
🎃 SIIX Organic Cotton Pumpkin Convertible Romper 18-24 months$30VariousUsedOct 5
🎃 SIIX Organic Cotton Pumpkin Convertible Romper 18-24 months$3018-24MUsedOct 5
SIIX Organic Cotton Americana Star Bubble Romper 3-6 months$343-6MUsedSep 25
SIIX Organic Cotton Americana Star Bubble Romper 3-6 months$343-6MUsedSep 25
🎃 SIIX Organic Cotton Pink Pumpkin Spice Bubble 0-3 3-6 12-18 18-24 m…$280-3MUsedSep 16
🎃 Siix Organic Cotton Pink Ruffle Pumpkin Stripe Footie 0-3 months$320-3MUsedSep 12
🎃 Siix Organic Cotton Pink Ruffle Pumpkin Stripe Footie 0-3 months$320-3MUsedSep 12
🎃 SIIX Organic Cotton Pumpkin Convertible Romper 3-6 6-12 months$346-12 monthsUsedSep 12
Photos and titles belong to the sellers who listed them on Poshmark.
Related by sales
Kids › One Pieces brands whose sold prices overlap $28–$34, by sell-through. Each card opens the brand’s Closo hub.
Buying Siix one pieces in bulk?
No wholesale lot carries Siix on the manifest right now.
Buy Siix by the piece
1 store sells Siix one item at a time
Prices may have changed · confirm on the store's site. Photos and titles belong to the store.
- Owl Tree Kids · Brooklyn, NY
Compare resale prices nearby
The brands and categories closest to Siix, each with its median sold price, its sales, its live listings or its monthly searches.
Similar brands by sales
- Magnetic Me$23
- Edgehill Collection$27
- L.L.Bean$30
- Angel Dear$34
- Milkberry$25
- Patagonia$40
- The Beaufort Bonnet Company$30
- Rylee + Cru$20
- Kissy Kissy$18
- The North Face$34
- Rabbit + Bear$16
- Ralph Lauren$21
- Mud Pie$16
Siix in other categories
Nearby categories
- One Pieces$15
- Bottoms$13
- Shirts & Tops$13
- Dresses$28
- Matching Sets$15
- Pajamas$15
- Accessories$19
- Jackets & Coats$30
- Swim$20
- Shoes$30
- Toys$15
- Costumes$18
About these numbers
Months of supply
Under 3 months is a seller's market, 3 to 6 balanced, over 6 a buyer's.
How this is measured
Poshmark listings live on the date the block shows (every seller, not only Closo shops), divided by an average month of the 12-month sales in “What Siix one pieces sell for”.
Siix — questions buyers ask
Answers come from live Closo listings and real sales, not from marketing copy.
