The 450 Reserve Is Here: The Heaviest Hoodie We Have Ever Made
Nov 13th 2026
There’s nothing more disappointing than a hoodie that looks heavyweight online but feels flimsy when you pull it on. We wanted to make something different: a hoodie with real substance, a relaxed shape, and the thoughtful construction to make it a go-to layer.
The short answer: 450 GSM means the fabric weighs 450 grams per square metre, and the 450 Reserve is the heaviest hoodie we’ve ever made. Explore the 450 Reserve collection or start with Espresso, our hero colour.
| Style | Fabric weight and material | Price |
|---|---|---|
| Classic Heavyweight Crewneck | 420 GSM | $79.95 |
| Hooded Pullover | 420 GSM | $99.95 |
| Privé Full Zip | 400 GSM French terry | $119.95 |
| 450 Reserve | 450 GSM, 100% organic cotton | $139.95 |
What does 450 GSM mean in a hoodie?
GSM stands for grams per square metre. It’s a way to describe fabric weight: a square metre of 450 GSM fabric weighs 450 grams.
That number gives you a useful point of comparison, but it doesn’t tell the whole story. GSM alone can’t promise how warm, soft, or durable a hoodie will feel. The fibre, fabric construction, fit, and garment details matter too.
So why 450? It puts the Reserve at the top of our hoodie range: heavier than our 420 GSM Hooded Pullover and our 400 GSM Privé Full Zip. That extra fabric weight gives the hoodie a more substantial feel, a more structured drape, and a silhouette that holds its shape. It’s engineered for insulation and feels especially at home when the weather turns cool.
100% organic cotton, with construction to match
The 450 Reserve is made from 450 GSM, 100% organic cotton. The cotton is combed and ring spun, and the hoodie is pre-shrunk and backed by our No-Pilling Guarantee.
Then there are the practical details. The ones you notice over time:
- A roomy, oversized fit with a relaxed off-shoulder shape and extra room through the body and sleeves.
- A double-layered hood.
- A bar-tacked kangaroo pocket for increased durability.
- 4-thread overlock stitching throughout.
- 1 x 1 ribbed knit cuffs and waistband.
Put together, those details give the 450 Reserve its soft feel, substantial structure, and roomy, timeless silhouette. It’s a premium cotton hoodie designed to feel comfortable in real life, not just look impressive on a product page.
Meet the five 450 Reserve colours
The 450 Reserve is available in five colours. Each offers a different feel while keeping the same fabric and construction:
- Espresso: a deep, grounded brown with a warm, understated look.
- Oatmeal: a soft, light neutral that feels easy and relaxed.
- Marine Navy: a classic deep blue with a clean, everyday feel.
- Heather Gray: a familiar, versatile neutral.
- Olive: a muted green with a laid-back, earthy feel.
How does the 450 Reserve fit?
The 450 Reserve is roomy and oversized, with extra space through the body and sleeves and a relaxed off-shoulder fit. If you prefer a closer fit, don’t guess from your usual size alone. Measure a hoodie you already like and compare it with the garment measurements on the 450 Reserve collection size chart.
The size range is XS to XXL. Take a moment to check the chart before choosing, especially if you’re deciding between sizes or want to know how the roomy silhouette will sit on you.
How to care for a 450 GSM organic cotton hoodie
Even pre-shrunk cotton garments have 2-3% shrinkage. To help minimize it, machine wash 100% organic cotton garments in cold water, up to a maximum of 40°C / 105°F, with like colours. Use no bleach, and tumble dry on low or air-dry.
Wash sand-coloured garments separately, especially for the first wash, to help prevent dye transfer. For more detail, see our cotton sweatshirt and sweatpants wash guide.
450 Reserve hoodie FAQs
What does 450 GSM mean?
GSM means grams per square metre. A 450 GSM fabric weighs 450 grams per square metre. The 450 Reserve is our heaviest hoodie, made from 450 GSM, 100% organic cotton.
Is the 450 Reserve warmer than your other hoodies?
It is our heaviest hoodie and is engineered for insulation. GSM measures fabric weight, though, not warmth by itself; the fabric and garment construction also shape how a hoodie feels.
Does it shrink?
Cotton garments have 2-3% shrinkage even when pre-shrunk. Cold washing and low-heat or air-drying help minimize shrinkage.
How should I wash a 450 GSM organic cotton hoodie?
Machine wash in cold water, maximum 40°C / 105°F, with like colours. Use no bleach, and tumble dry on low or air-dry. Wash sand-coloured garments separately, especially for the first wash.
Meet the heaviest hoodie we’ve made
If you’ve been looking for a premium cotton hoodie with real weight, room to move, and construction details made for everyday wear, meet the 450 Reserve. Take a look at all five colours in the 450 Reserve collection. Orders over $150 ship free across the USA and Canada.
North American Made