New Balance Numeric 770 Grey Day (2026)
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Quick Answer
Across sizes, the New Balance Numeric 770 Grey Day (2026) averages about $196 on the resale market. Your size may cost more or less.
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Up 65% this month. Set your target and get alerted the moment it dips.
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Live Resale Prices
The lowest ask on each marketplace right now — usually an odd size. Most sizes trade around $196; see prices by size below.
Each card is that marketplace's lowest ask across all sizes — your size may cost more. See prices by size below.
Release Details
Release Date
May 29, 2026
Retail Price
$125
Colorway
Marblehead-Island Blue
SKU
UN770GRY
Gender
unisex
Silhouette
Numeric 770
Price Analysis
The New Balance Numeric 770 Grey Day (2026) in the "Marblehead-Island Blue" colorway is a New Balance release. It released on May 29, 2026.
The New Balance Numeric 770 Grey Day (2026) is currently trading at $196 on the resale market, a 57% premium over its $125 retail price. Prices have been stable. Our model projects values around $178 over the next 30 days. SneakerPing's Worth It Score rates this shoe a 3.6 out of 10 — "Fair".
As of August 29, 2026, the New Balance Numeric 770 Grey Day (2026) averages $196 across sizes on StockX, GOAT and eBay - 57% above its $125 retail price. The shoe recorded 1 sales in the last 30 days.
Price History
Daily resale prices for the New Balance Numeric 770 Grey Day (2026) through August 28, 2026, up 65% across 2 daily observations.
Daily resale price, averaged across sizes.
Price Forecast
Our 30-day outlook: prices look likely to stay stable (Medium confidence). Current model estimate $178. Forecast generated on August 30, 2026.
That is our forecast for this shoe overall, averaged across sizes, not a price for one size. Your size can land above or below it.
Prices by Size
| Size | StockX | GOAT |
|---|---|---|
| 4 | $209 | $234 |
| 4.5 | $209 | $234 |
| 5 | $209 | $234 |
| 5.5 | $209 | $234 |
| 6 | $209 | $234 |
| 6.5 | $209 | $234 |
| 7 | $209 | $234 |
| 7.5 | $209 | $234 |
| 8 | $183 | $193 |
| 8.5 | $181 | $193 |
| 9 | $181 | $193 |
| 9.5 | $181 | $193 |
| 10 | $187 | $222 |
| 10.5 | $209 | $222 |
| 11 | $183 | $205 |
| 11.5 | $183 | $193 |
| 12 | $181 | $193 |
| 13 | $181 | $233 |
| 14 | $209 | $234 |
Check retailer size guides for the best fit.
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Frequently Asked Questions
How much is the New Balance Numeric 770 Grey Day (2026) reselling for right now?
The New Balance Numeric 770 Grey Day (2026) averages about $196 across sizes on resale platforms like StockX and GOAT. That is a 57% premium over the $125 retail price.
When did the New Balance Numeric 770 Grey Day (2026) release?
The New Balance Numeric 770 Grey Day (2026) originally released on May 29, 2026 at a retail price of $125.
Is the New Balance Numeric 770 Grey Day (2026) worth buying?
SneakerPing rates the New Balance Numeric 770 Grey Day (2026) a 3.6/10 — "Fair". Check current market prices before committing.
Where can I buy the New Balance Numeric 770 Grey Day (2026)?
The New Balance Numeric 770 Grey Day (2026) is available on resale platforms including StockX, GOAT, and eBay. If restocks occur, check the New Balance website and authorized retailers.
What sizes does the New Balance Numeric 770 Grey Day (2026) come in?
The New Balance Numeric 770 Grey Day (2026) is typically available in men's US sizes 4–18, with select colorways also releasing in women's and grade school sizing. Size availability varies by retailer, so check StockX or GOAT for current stock.
What will the New Balance Numeric 770 Grey Day (2026) resale price be in 30 days?
SneakerPing's pricing model projects the New Balance Numeric 770 Grey Day (2026) to trade around $178 over the next 30 days. Market conditions appear stable at this time. That projection is for the New Balance Numeric 770 Grey Day (2026) overall rather than for a single size, and it is based on historical sales data and current market signals. Your size may land above or below it.
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