Decrum — Men's Tailoring, Since 2015
A blazer that trades wool for leather — and reads all the sharper for it. This men’s black three-button leather blazer is cut in 100% real lambskin with a notch lapel and a higher, more buttoned front, so it sits closer to a tailored jacket than anything casual. The three-button stance lengthens the line and squares the shoulder — presence you can feel walking into a room. Black keeps it in play everywhere, from a work week to a late dinner. Own it once and it keeps paying you back, the leather warming and improving with every year you wear it.
Handcrafted in Decrum’s own workshop and sold direct — maker-to-wardrobe, without the retail markup a blazer like this usually carries. We’ve built leather this way since 2015: real hide, honest construction, no faux and no shortcuts. You pay for the lambskin and the hands that shaped it, not the names in between.
100% genuine lambskin, chosen because a three-button blazer needs leather that will hold a lapel and a clean front without stiffening into a shell. Supple and fine-grained, it keeps the tailoring crisp while still moving with you through a long day. And it improves on the way — breaking in, never down, the colour settling richer the more it’s worn.
A three-button blazer silhouette with a notch lapel — structured at the shoulder, tapered through the body, a touch more formal than a two-button. Seven pockets in all: four outside and three inside, one cut for a phone, so it carries a full day without a bag. Sharp over a shirt and tie, easy over a fine knit — it holds its line from desk to dinner.
Over a crisp shirt for the boardroom, over a tee and denim to take the edge off. Black does the heavy lifting — it streamlines the frame and quietly upgrades everything next to it.
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REAL LEATHER IS NATURE'S MASTERPIECE
Feels Like a Second Skin
Built To Last
A Natural By Product
Ages Beautifully
ABOUT OUR LEATHER
Our leather is a natural by-product of the food industry, nothing goes to waste.
Socially responsible production standards to ensure ethical working conditions.
The highest grades that retain natural texture, strength, and breathability.
Our leather is tanned using environmentally responsible methods, minimizing water and chemical waste without compromising softness or durability.
Real, verified reviews from Decrum customers on Trustpilot
Great product
Product as advertised - good quality, colour matches the picture. Good communication prior to shipping - asking for clarity on sizing etc. Measure yourself or have someone else measure yourself for sizing - the products are true to their size.
I was a bit sceptical of ordering…
I was a bit sceptical of ordering online but I did. Received jacket and was beautiful. It was so soft and light but the quality was exceptional. I ordered the wrong size and communication was exceptional and fast so received new jacket quickly and very happy with service. Very happy I ordered from this company 😊
Highly advanced in customer experience
Decrum is highly advanced in customer experience from initial contact to purchase exactness to delivery and follow up — an example for healthcare industry standards, surgical in one word. I'm not returning my exact-fit, great-price leather jacket.
The jacket is a beautiful color and quality!
The jacket is a beautiful color off white, very soft and thicker leather than I expected for a lambskin hide. It is comfortable and looks great! Excellent communication during the process also! Ticks all the boxes — I was hesitant at first to order a leather coat online and happy I took the risk. Great quality, and a smooth, informed process including follow up! Thank you Decrum!
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Yes. Decrum.eu is our dedicated European storefront, serving customers across the Netherlands, Sweden, Switzerland, Austria, Ireland, Spain and more — as well as the broader EU. We are a global leather specialist with over 50,000 customers worldwide since 2015, and this site is built specifically for European customers with pricing in EUR and free delivery across all covered countries. Read verified reviews from European buyers on our Customer Reviews page or discover our brand story here.
We use 100% Genuine Grain Leather, specialising in premium Lambskin and Cowhide. We do not sell faux, vegan, or PU leather. Every Decrum jacket is a natural product — breathable, durable, and designed to develop a deeper character and patina the more you wear it. If genuine leather matters to you, it matters to us too — we will never compromise on material.
Free shipping across the EU via DHL, fully tracked. Standard delivery 4–6 business days. Track your shipment anytime on our Track Your Order page.
Our jackets are designed with a modern, tailored fit. To find the right size — especially if you plan to layer over a jumper or fleece during colder months — we highly recommend checking our Size Guide. We provide exact chest measurements in centimetres to make it straightforward across all European sizing conventions. For a looser fit, always go one size up. Still unsure? Reach us via our contact page before ordering.
We offer easy returns for all European customers. If your jacket is not the right fit, initiate your return within 30 days of delivery through our Return & Exchange page. Items must be unworn, unwashed, and have tags attached. We want every customer across Europe to feel completely confident in their Decrum leather — sizing up or down is no problem at all.
