OS 01 Essence Black Technical Stretch Twill
Frequently bought together.
The OS 01 Essence comes in a mid-weight twill, and the weave is what gives it structure. Substantial enough to hold its shape through a full day of wear, without losing the drape that makes it fall right. Comfortable enough to erase the line between the office and the couch, and sharp enough for either.
Cut like a shirt rather than a jacket, with a relaxed silhouette that layers easily over a tee or a knit.
Pair it with the TP 01 Essence, made from the same fabric, and wear the two tonal or split them up across the rest of the wardrobe.
Not sure on size? Check our measurement guide, or .
- Seasonless design suitable for every occasion.
- Regular fit with room to layer over a tee.
- Button-up front closure with a clean folded collar.
- The ETQ signature square at the back of the neck.
- Slightly rounded split hem.
- Piece-dyed with reactive dyes for deep, even colour that holds through washing.
- Mid-weight woven twill at 285g/m2.
- Composition: 62% Polyester, 34% Viscose, 4% Elastane.
- Made in Turkey. Designed in the Netherlands.
- Easy care, machine wash inside out at max. 30°C on a gentle cycle.
- From the collections Menswear and Overshirts
Shop the look
Made by specialists.
No single factory does everything well. So we don't ask one to. Every piece is built by the maker who masters that exact craft — the cut, the cloth, the finish. Chosen for skill, never convenience. It shows in how it's made, and in how long it lasts.
Sharp, never stiff.
The ease of your softest loungewear, with the line of real tailoring. The kind of comfort you stop noticing — on a silhouette that still reads refined.
Product design, not fashion.
From our Dutch studio we don't reinvent each season. We refine. The same icons, made better every time — the wardrobe you keep, not the trend you replace.
Shop the look
Made by specialists.
No single factory does everything well. So we don't ask one to. Every piece is built by the maker who masters that exact craft — the cut, the cloth, the finish. Chosen for skill, never convenience. It shows in how it's made, and in how long it lasts.
Sharp, never stiff.
The ease of your softest loungewear, with the line of real tailoring. The kind of comfort you stop noticing — on a silhouette that still reads refined.
Product design, not fashion.
From our Dutch studio we don't reinvent each season. We refine. The same icons, made better every time — the wardrobe you keep, not the trend you replace.
Shipping & Delivery
Orders placed before 23:30 will be shipped the same day. Fast like we are furious. For the Netherlands, Germany, Belgium and France we also offer easily accessible pick-up points.
| Region | Carrier | Fee | Delivery |
|---|---|---|---|
| Netherlands | DHL | Free from €150 | 1 - 2 days |
| Belgium | Bpost | Free from €150 | 1 - 2 days |
| Germany | DHL | Free from €150 | 1 - 3 days |
| United Kingdom | Royal Mail | Free from £130 | 1 - 2 days |
| France | La Poste | Free from €150 | 2 - 5 days |
| Denmark | PostNord | Free from 1000 DKK |
2 - 5 days |
| Sweden | PostNord | Free from 2500 SEK |
2 - 5 days |
| Norway | FedEx | €25 | 2 - 5 days |
| Austria | DPD | Free from €150 | 2 - 5 days |
| Switzerland | FedEx | 25 CHF | 2 - 5 days |
| Spain | Correos | Free from €150 | 2 - 5 days |
| Italy | Poste Italiane | Free from €150 | 2 - 5 days |
| Ireland | FedEx | Free from €150 | 2 - 5 days |
| Portugal | FedEx | Free from €150 | 2 - 5 days |
| Greece | FedEx | Free from €150 | 2 - 5 days |
| Poland | GLS | Free from €150 | 2 - 5 days |
| UAE | FedEx | 100 AED | 2 - 5 days |
| US | FedEx | Free from $300 | 2 - 5 days |
| Canada | FedEx | $29 | 2 - 5 days |
| Australia New Zealand |
FedEx | 50 AUD 50 NZD |
2 - 5 days |
For inquiries regarding countries not listed, please contact our Customer Service.
Important information
Delivery times are provided as guidelines only and do not take into account possible delays caused by payment authorization and/or stock availability. We are unable to deliver to post office boxes.
Shipping exceptions due to holidays
We do not ship orders on the following public holidays:
New Year’s Day (January 1st)
King’s Day (April 27th)
Christmas Day (December 25th)
Boxing Day (December 26th)
Insurance
ETQ insures each purchase during time in transit until it is delivered to you. Orders may require signature upon delivery, at which point responsibility for the shipment passes to you. If you have specified a recipient other than yourself for delivery purposes, you also accept that signature by the third party is sufficient proof of delivery and fulfillment by ETQ Amsterdam.
VAT discount
Customers ordering from outside the European Union (except customers from the UK) will receive a VAT discount of 21% on their order. This is applied at checkout once you have entered your delivery details or when you switch country/currency while browsing on our website.
Customs, duties and taxes
All orders shipped to countries outside the European Union (except the UK) are shipped Delivery Duties Unpaid (DDU). Customs, duties and taxes are not included in the item price or shipping cost. When you place an international order, you agree to pay any applicable customs, duties or taxes levied by your destination country.
Unfortunately we cannot calculate these charges prior to your order being placed and are unable to cover them for customers. Any applicable fees will be collected from you by the carrier upon delivery. Please check with your local customs office to determine what these additional costs will be prior to purchase.
Returns & exchanges
Our return policy
You can submit a return or exchange within 14 days of receiving your order. The return fee and exchange fee depend on your country and are shown in the table below.
- Use our return portal to submit your return or exchange.
- Need a different size? You can request an exchange through our return portal.
- Items must be clean, unworn and returned with all tags and packaging in good condition.
- For hygiene reasons, underwear can only be returned or exchanged if the seal is still intact.
- If a returned item does not meet our return conditions, we may refuse the refund in full or in part.
- We recommend using our return portal. If you choose your own carrier, we are not liable for loss in transit and processing may take longer.
- If you use your own carrier, those return costs will not be reimbursed.
- For returns with multiple items, a €2.00 handling fee applies for each extra item from the second item onward.
- If there is a price difference due to an ongoing promotion, this can be compensated with a voucher.
| Country | Return fee | Exchange fee |
| NL / BE / DE / FR | €6.95 | Free |
| UK | £6 | Free |
| PT / AT / ES IE / IT / SE |
€9.95 | Free |
| DK | 75 DKK | Free |
| CH | 30 CHF | 30 CHF |
| AE | 150 AED | 150 AED |
| US | $60 | $29 |
| All other countries | Carrier of choice |
Carrier of choice |
Returns & exchanges from outside the EU
If you return an item from outside the European Union, except for the UK, you are responsible for any customs duties, taxes or other fees. These costs are not covered by us and may be charged by local authorities during return processing. For more information, please visit our page on returns and exchanges.
How it's made - Menswear
All ETQ garments are crafted in family-owned ateliers.
We team up with ateliers that work with traditional methods. Cutting, crafting, and stitching piece by piece with ultimate care. Unlike fast fashion companies, we have the luxury to take our time. Slow motion. We are masters of precision engineering.
Endless Comfort - Menswear
You look sophisticated, yet feel like Sunday mornings.
When it comes to materials, our bar is high. Only the finest materials enter the Atelier. No shortcuts. ETQs premium weaves and knits are smooth like butter. They are durable and have recovery properties. They stay in shape. And so will you.
Quality matters. We focus on things, that even the eye can't see. Obsessive, yes. But: soon after wearing ETQ you will notice the quality difference.
Dutch Design
Strong silhouettes. Nuanced colors. Thick layers of quality and a thin layer of logos. That’s ETQ. We master precision engineering and tinker with our products as if they were race cars. Every collection is the same but evolved. Continuously.
And so our story goes on. Evolving classic etiquette to match the pace of today. We don’t just do it. We do it with grace.
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Added to shopping bag
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| EU | US | UK | CM |
| 39 | 6 | 5 | 25.7 |
| 40 | 7 | 6 | 26.4 |
| 41 | 8 | 7 | 27.0 |
| 42 | 9 | 8 | 27.7 |
| 43 | 10 | 9 | 28.3 |
| 44 | 11 | 10 | 28.9 |
| 45 | 12 | 11 | 29.6 |
| 46 | 13 | 12 | 30.2 |
| 47 | 14 | 13 | 30.9 |
How to measure
Let’s find your perfect fit. Place a sheet of paper on the floor against the wall and put your feet (with socks) on it, heels against the wall. Make sure you lean on your feet with full power when measuring. Now you simply draw a line at the end of the biggest foot. Measure the distance with a ruler and find the size that matches it: see size table. Are you in between sizes? In that case, we suggest taking the bigger size.
OS 01 Essence - Size Guide
All measurements in centimetres.
Use an overshirt with a similar fit as your reference. Lay it flat and compare the measurements below.
| Size | Shoulder | Sleeve | Chest | Total |
|---|---|---|---|---|
| S | 48 | 65 | 56 | 75 |
| M | 50 | 66 | 58 | 76 |
| L | 52 | 66 | 60 | 76 |
| XL | 54 | 67 | 62 | 77 |
Measurements are taken flat, from seam to seam.
How to measure
Grab your favorite overshirt, preferably with a similar fit, and lay it flat on a surface. Use this item as your reference to compare the measurements above.
Shoulder
Measure straight across the back, from one shoulder seam to the other.
Sleeve length
Starting at the shoulder seam, measure down to the end of the sleeve.
Pit to pit / Chest
Measure from one armpit seam to the other, straight across the front.
Total length
Measure from the highest shoulder point straight down to the hem.
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Added to shopping bag
Choose size
| EU | US | UK | CM |
| 39 | 6 | 5 | 25.7 |
| 40 | 7 | 6 | 26.4 |
| 41 | 8 | 7 | 27.0 |
| 42 | 9 | 8 | 27.7 |
| 43 | 10 | 9 | 28.3 |
| 44 | 11 | 10 | 28.9 |
| 45 | 12 | 11 | 29.6 |
| 46 | 13 | 12 | 30.2 |
| 47 | 14 | 13 | 30.9 |
How to measure
Let’s find your perfect fit. Place a sheet of paper on the floor against the wall and put your feet (with socks) on it, heels against the wall. Make sure you lean on your feet with full power when measuring. Now you simply draw a line at the end of the biggest foot. Measure the distance with a ruler and find the size that matches it: see size table. Are you in between sizes? In that case, we suggest taking the bigger size.
OS 01 Essence - Size Guide
All measurements in centimetres.
Use an overshirt with a similar fit as your reference. Lay it flat and compare the measurements below.
| Size | Shoulder | Sleeve | Chest | Total |
|---|---|---|---|---|
| S | 48 | 65 | 56 | 75 |
| M | 50 | 66 | 58 | 76 |
| L | 52 | 66 | 60 | 76 |
| XL | 54 | 67 | 62 | 77 |
Measurements are taken flat, from seam to seam.
How to measure
Grab your favorite overshirt, preferably with a similar fit, and lay it flat on a surface. Use this item as your reference to compare the measurements above.
Shoulder
Measure straight across the back, from one shoulder seam to the other.
Sleeve length
Starting at the shoulder seam, measure down to the end of the sleeve.
Pit to pit / Chest
Measure from one armpit seam to the other, straight across the front.
Total length
Measure from the highest shoulder point straight down to the hem.