Extra Heavy Cotton T-Shirt / Long-Sleeve
Our heaviest T-shirt with a refined yet relaxed expression: this Long-Sleeve is a true everyday favorite.
Made from 100% organic cotton, the Long-Sleeve Extra Heavy Cotton T-Shirt boasts almost double the weight of our medium-weight Cotton T-Shirt. This structured hand feel is reflected in wider ribs on the neckline and hem, resulting in a well-balanced look. At 280 g/m2, it has a sculptural drape that’s universally flattering.
Your Long-Sleeve Extra Heavy Cotton T-Shirt is made to order, made to fit, and made to last in Portugal.
All of our garments are covered by our Free Remake Guarantee: Should you not be satisfied with the fit of your first order, we’ll make you a new one, free of charge.
When you order 2 or more garments, we can optimize our production and logistics, and pass the savings on to you.
We ship worldwide. Enjoy free shipping when ordering 2 or more items.
Production time: 7-10 days
Keep deep and light colors separate to avoid color transfer in the wash.
Choose the Extra Heavy Cotton T-Shirt / Long-Sleeve if you prefer full-length sleeves in the same dense 280 g/m² organic-cotton jersey as the Extra Heavy Cotton T-Shirt. It has a structured look and substantial feel.
It is made from 100% long-staple organic cotton and certified to OEKO-TEX Standard 100. The dense 280 g/m² jersey and the ribbed neckline and hem create the structured look.
Yes. Its shape comes from the dense 280 g/m² jersey and the ribbed neckline and hem, helping it keep its structure through regular wear. Wash at 40°C on a gentle cycle, skip fabric softener, keep deep and light colors separate, and air dry.
Every garment is made only after you order it. This allows us to produce only what's needed while offering either one of 24 standard sizes or a custom size generated from a few simple details, all at the same price.
If you order a standard size, you can return it within 14 days. Custom garments are made specifically for you and can't be returned, but they're covered by our Free Remake Guarantee once per product group. If the fit isn't right on your first order, we'll remake it free of charge within 2 months.
Durable yet soft. The Extra Heavy Cotton Long-Sleeve T-Shirt is our most durable long-sleeve – dense, structured, and ready for the outdoors. It pairs the reassuring weight of 280 g/m² cotton with the quiet sophistication that defines SON essentials.
Subtle refinement in fit and sleeve pitch ensures movement without bulk. Built for cooler days, it’s a piece that wears beautifully across seasons and years.
Crafted from 100% organic cotton in a 280 g/m² heavy jersey that balances rugged durability with unexpected softness. The dense weave gives structure while remaining comfortable next to skin.
The fabric’s thickness produces a natural, architectural drape – it stands slightly away from the body while allowing air to move freely, giving both presence and comfort.
Organic cotton makes up less than a quarter of the world’s cotton, yet it stands apart for the way it is grown and worn. Free from synthetic pesticides and fertilizers, it is softer on the planet, naturally breathable, and strong enough for everyday use in both lighter and heavier weights.
Small but vital, PNEM supports the foundation of our production – cutting and coordinating the making of our white Supima T-shirts. The company is run by Eduardo, one of our longest-standing collaborators, whose expertise has shaped how we produce today.
Every Son of a Tailor garment is carefully inspected by hand before it leaves our production floor. Our team checks each piece for fit accuracy, finishing, and overall quality, ensuring you receive exactly what you ordered, and nothing less.
Unlike most clothing brands, we manage not only our production but also our logistics, meaning your garments travel as quickly as possible from our hands to yours.
In 2022, we established SON Supply, our own production facility in Santo Tirso, Portugal. Today, over 55% of our garments are made there, with the rest produced by a tightly knit community of trusted artisans across the country.
Whether you’re ordering your first T-shirt or you’ve been with us for years, we take the time to make sure you get exactly what you need. If something isn’t right, we fix it. Our team is easy to reach and empowered to help.