Warm without the bulk
Wore it under a coat through a week in Vienna at minus four. No layer underneath and I was fine.
Pure Extra-Fine Merino Wool Black Arvo Set
Pure Extra-Fine Merino Wool Black Arvo Set
Regular price
€99,90
Regular price
€199,90
Sale price
€99,90
Color
Size guide
Body measurements, EU and UK sizing
| Size | EU | UK | Chest (cm) | Waist (cm) |
|---|---|---|---|---|
| XS | 44 | 34 | 86-91 | 71-76 |
| S | 46 | 36 | 91-96 | 76-81 |
| M | 48 | 38 | 96-102 | 81-86 |
| L | 50 | 40 | 102-108 | 86-94 |
| XL | 52 | 42 | 108-114 | 94-102 |
| 2XL | 54 | 44 | 114-120 | 102-110 |
Swipe the table to see every column
Measurements refer to your body, not the garment. UK sizing follows your chest in inches, EU sizing is the same number doubled and rounded. Layering a shirt underneath? Take the larger size.
In stock. Order today, ships by September 03
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Free worldwide shipping on every order
Free size exchange if the fit is not right
Taxes and duties included, no surprise fees
Description
Description
Arvo Set | Extra-Fine Merino Wool | Castielli
The Arvo Set pairs a relaxed zip hoodie and matching trousers, knitted in pure extra-fine merino wool, finished in black. Merino breathes and holds warmth without bulk. It also resists odor, so one set covers a long flight, a slow Sunday and dinner out without a wash in between.
Why you'll reach for it
- Pure merino: extra-fine fibers with none of the itch of standard wool
- Temperature control: insulates outside and breathes indoors, wearable most of the year
- Matched by design: top and bottom come from the same yarn and dye lot, so the pairing always reads intentional
- Fewer washes: merino resists odor naturally, so it needs less laundering than cotton
- Quiet finish: no logos and clean lines, nothing that dates or shouts
Fit and fabric
Both pieces follow EU sizing. The top has a relaxed drape that never clings, and the bottoms sit clean through the leg with room to move. Sizes are selected separately for top and bottom, so an M top can pair with an L bottom if that matches your build. The fine knit stretches with you and recovers its shape.
Care
- Machine wash cold on a wool cycle, 30 degrees max, or hand wash
- Dry flat away from direct heat, reshape while damp
- Store folded, never on a hanger
Shipping and guarantee
- Free worldwide tracked shipping, 7 to 12 business days, taxes and duties included
- Free size exchange if the size is not right
- Secure checkout
Shipping & Delivery
Shipping & Delivery
Orders are prepared within 24 to 48 hours. Your tracking number arrives by email the moment the parcel ships. Taxes and duties are included in the price, so there is nothing to pay on delivery.
Free Exchange
Free Exchange
Size exchanges are free of charge. Write to support@castielli.com with your order number and the size you need, we arrange the rest within 1 business day.
Care Instructions
Care Instructions
Hand wash cold or use the wool cycle, then dry flat rather than on a hanger so the shoulders keep their line. Lift any pilling with a cashmere comb once a season. Between wears, air it overnight instead of washing.
Pairs Well With
White Pleated Linen Seaside Shorts
€99,90
€49,90
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White Linen City Loafers
€139,90
€69,90
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White Zigzag Textured Zipper Polo
€99,90
€49,90
SAVE €50,00
The Fibre
Cashmere and extra-fine merino
Cashmere traps air instead of adding weight, which is why a thin crewneck outperforms a thick one. Extra-fine merino handles the days that start cold and end mild, and takes several wears between washes. Both are knitted to a weight you can layer under a coat without bulk at the shoulder.
The Knit
Ribbing that springs back in February
Cuffs and hem knitted tight enough to hold after a season, seams finished on the inside, and a neck that lies flat instead of rolling. The parts you only judge on the tenth wear.
Frequently Asked Questions
How long does delivery take?
Orders are packed within 24 to 48 hours and delivered in 7 to 12 business days, tracked door to door. Shipping is free worldwide.
Will I pay customs fees?
No. Taxes and duties are included in the price you see at checkout.
How do I track my order?
Your tracking number arrives by email the moment the parcel leaves our warehouse. If it has not arrived after 15 business days, write to support@castielli.com and we will locate it or resend it.
Can I exchange my order?
Yes. Size exchanges are free of charge. Email support@castielli.com with your order number and the size you need, we send a prepaid label within 1 business day.
How do refunds work?
Refunds are processed within 5 business days of receiving the return. Pieces must be unworn, with the original tags attached. The full conditions are in our Refund Policy.
Which size should I order?
Our pieces follow standard EU sizing. Every product page has a size guide with measurements in cm and inches, plus EU and UK conversions. Planning to layer a shirt underneath? Take the larger size.
How do I care for cashmere and merino?
Hand wash cold or use the wool cycle, then dry flat rather than on a hanger. Lift any pilling with a cashmere comb once a season. Between wears, air it overnight instead of washing.
Will the knit pill?
Any natural fibre pills where it rubs, usually under the arm and at the cuff. A cashmere comb lifts it in a minute and the piece looks new again.
Which payment methods do you accept?
Visa, Mastercard, American Express, PayPal, Apple Pay and Google Pay, all through an SSL encrypted checkout.
Styled by the Community
What our customers say
Excellent
4.8 · Based on 329 reviews
Trustpilot
Softer than the label suggests
I own cashmere that cost three times this and the hand is the same. My wife checked the label twice.
Cable knit that holds its shape
Six weeks in and the cables still stand up. My last one went flat by December.
Layers under a coat without bunching
Thin enough at the shoulder that my overcoat still closes properly.
The colour is exactly the photo
The camel reads warm, not orange, which is where most brands miss.
Third piece this winter
Two crewnecks and a cardigan. Same fit, same weight, no surprises.
Size up if you layer
Beautiful knit and true to the chart, but if you wear a shirt underneath take the next size. The guide says as much and I ignored it.
No pilling after six washes
Hand washed cold, dried flat. Still smooth under the arms, which is where my old ones gave up.
Ten days to Oslo, tracked
Packed properly and arrived without a crease worth mentioning.
Warmer than a thicker sweater I own
Half the weight and twice the heat. That is the whole argument for cashmere and it holds.
Sleeves a touch long at 176cm
One fold at the cuff and it looks intentional. Everything else lands right.
Wore it to the office all week
Over a shirt on Monday, on its own on Friday. Nobody noticed it was the same piece.
The ribbing springs back
Cuffs and hem still tight after a season. My old merino stretched out by February.
Good for a cold office
The heating in my building is a rumour. This solved it.
Wanted it in navy
The grey and camel are both good. I would have bought two if navy existed.
Zero itch
I cannot wear most wool against the skin. Wore this over a bare chest for a whole day without thinking about it.
Packed for a ski week
Rolled into a bag, came out ready. Wore it every evening after the mountain.
Holds a shape after a wash
Dried flat as instructed and it came back the same size. No stretched neck.
Slow to arrive, worth it
Twelve business days to Stockholm, which is the top of the promised window. The piece itself is faultless.
The weight is right
Heavy enough to feel substantial, light enough for indoors. Rare combination.
Bought it for my father too
He is fussy about knitwear and has worn nothing else since Christmas.
Neck sits flat
No rolling at the crew neck after a month, which is the first thing to go on cheap knits.
A single loose stitch at the hem
Fixed it myself in a minute and it has not moved since. Saying it for honesty.
Replaced two thicker sweaters
Both went to charity. This one does what they did with less bulk.
Care instructions actually work
Wool cycle, dry flat, comb once. Looks new after three months.
Fits over a shirt collar
The neck opening is wide enough that the collar sits out instead of getting swallowed.
Runs warm for a mild winter
Perfect at zero degrees, too much at twelve. Depends where you live.
The seams are finished inside
Turned it inside out expecting the usual mess. Clean.
Second winter, same shape
Bought last November, worn constantly, and it has not sagged at the elbows.
Worth it at this price
I stopped buying cashmere years ago because of what it cost. This brought me back.