Ida | Half-Zip Ribbed Sweater
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Size Finder · Women
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Free shipping · Order today, arrives in 5–8 business days
- 90-day returnsPrintable return label by email
- Ships in 2–4 business daysTracked delivery in 3–4 days
- Real people, real answersEmail replies within a few hours
- Designed in the USAConsidered pieces, made to last
Women's half-zip ribbed knit sweater
The Ida is a relaxed-fit half-zip ribbed sweater that layers as well as it stands alone. Whether you're heading out on a cool weekend morning or settling in for a long afternoon, it moves easily between both. The heathered tones and clean ribbed texture give it that pulled-together look without any effort.
Why the Ida half-zip sweater is perfect for you:
- Half-Zip Neckline: Adjust your collar open or closed in seconds
- Ribbed Knit Construction: Holds its shape wash after wash, season after season
- Relaxed Fit Pullover: Comfortable through the shoulders without feeling oversized
- Long Sleeve Layering Piece: Pairs cleanly over shirts or under your favourite coat
Make the Ida your go-to sweater for every cool-weather day on the calendar.
Looking After It
Hand wash cool or use a wool cycle inside a mesh bag, with the zip closed. Reshape while damp and dry flat — never hang wet knitwear.
Full measurements for every size are in the Size & Fit panel on this page — switch between inches and centimetres there.
Questions, Answered
Does the zip snag the knit?
No — it runs on a stitched placket rather than directly against the rib. Close it before washing to be safe.
Does it run true to size?
Yes — take your usual size for the intended fit. If you prefer a roomier line, size up once.
Does the rib stretch out?
No — rib is knitted to spring back. Dry it flat rather than on a hanger and it keeps its line.
Size Guide
Find your fit.
Our pieces follow standard US sizing. If you're between sizes, choose the larger size for outerwear and knitwear and your usual size for dresses. The Size Finder on every product page gives you a personal recommendation in seconds.
Women's clothing
| Size | US | Bust (in) | Waist (in) | Hips (in) |
|---|---|---|---|---|
| XS | 0–2 | 31–32 | 24–25 | 34–35 |
| S | 4–6 | 33–34 | 26–27 | 36–37 |
| M | 8–10 | 35–36 | 28–29 | 38–39 |
| L | 12–14 | 37.5–39 | 30.5–32 | 40.5–42 |
| XL | 16 | 40.5–42 | 33.5–35 | 43.5–45 |
| XXL | 18 | 43.5–45 | 36.5–38 | 46.5–48 |
Men's clothing
| Size | Chest (in) | Waist (in) | Neck (in) |
|---|---|---|---|
| S | 35–37 | 29–31 | 14–14.5 |
| M | 38–40 | 32–34 | 15–15.5 |
| L | 41–43 | 35–37 | 16–16.5 |
| XL | 44–46 | 38–40 | 17–17.5 |
| XXL | 47–49 | 41–43 | 18–18.5 |
Shoes
| Foot length (in) | Women US | Men US | EU |
|---|---|---|---|
| 9.0 | 6 | – | 36–37 |
| 9.4 | 7 | – | 37–38 |
| 9.7 | 8 | 6.5 | 38–39 |
| 10.0 | 9 | 7.5 | 40 |
| 10.3 | 10 | 8.5 | 41 |
| 10.6 | 11 | 9.5 | 42–43 |
| 11.0 | – | 10.5 | 44 |
| 11.3 | – | 11.5 | 45 |
| 11.7 | – | 12.5 | 46 |
Still unsure? Email info@fifthavenuestyle.com for personal sizing help.
Every piece is made from carefully selected materials. Please follow the care label inside the garment. As a rule of thumb: wash knitwear cold and dry it flat, and have tailored outerwear professionally dry cleaned to keep its shape for years.
Free US shipping on every order. Orders are processed within 2–4 business days, then delivered within 3–4 business days. You'll receive a tracking number by email as soon as your order ships.
90-day returns. Return unworn items in their original condition within 90 days of delivery. Email us and we'll send you a printable return label; the label cost is deducted from your refund, except for damaged, faulty or incorrect items. Full return policy