https://www.redditraffler.com/raffles/1tfpe2a

u/sharkbyteee, please DM me your shipping details

Prepare for next Sunday a photo with any of your Petros item (indoors or outdoors - anything will work). We will be giving a Wool Blanket to the random submission of a photo of a Petros item (hoodie or blanket or fleece or scarf etc )

1. Join this subreddit
2. Comment with: What trend in outdoor gear do you dislike?
3. The winner will be selected randomly in 24 hours via https://www.redditraffler.com/

_____

Prepare for next Sunday a photo with any of your Petros item (indoors or outdoors - anything will work). We will be giving a Wool Blanket to the random submission of a photo of a Petros item (hoodie or blanket or fleece or scarf etc )

Video:

https://youtube.com/shorts/2-ZeJObiKwo?feature=share

Wool Clothing Made Simple: How to Pick the Right Thickness for Cold Weather

What Is GSM and Why Does It Matter?

When you buy a wool sweater or shirt, you might see a number like "380 GSM" on the label. GSM simply means how heavy the fabric is per square metre — think of it like measuring how thick and dense the wool is.

The heavier the number, the thicker and warmer the fabric. A light summer wool top might be 150 GSM. A serious winter garment can be 380 GSM or more. It's just like the difference between a thin bedsheet and a heavy wool blanket.

The Simple Rule

Thicker wool = warmer and more wind-resistant. Thinner wool = lighter and better for when you're moving around a lot.

That's really the whole idea. The rest is just figuring out which thickness is right for which situation.

Your Body Makes Heat — and That Changes Everything

Here's something important your granddaughter probably never told you: your body produces much more heat when you're moving than when you're sitting still.

• Sitting in a chair → your body produces about 100 watts of heat. That's like one old-fashioned lightbulb.
• Walking uphill with a backpack → your body can produce 300–500 watts. You're basically a small space heater!

This matters a lot for choosing wool. If you're hiking hard, you don't need as heavy a wool — your body is already making plenty of heat. But if you're standing still in the cold, or sitting at a campfire, you need much more insulation because your body is barely producing any warmth.

A Simple Guide: Which Wool for Which Weather?

Here's the table from the article, explained in plain terms:

Wool Thickness	How Warm	Good For
150–200 GSM	Like a light cardigan	Warm days, summer hiking, travel
200–260 GSM	Like a normal winter jumper	Cool autumn days, moderate winter activity
260–340 GSM	Like a thick fisherman's sweater	Cold winter weather, outdoor work
380 GSM	Like a very dense, heavy sweater	Standing or sitting in bitter cold (below −10°C)
500–700+ GSM	Like a blanket	Camp blankets, wraps for extreme cold

Why Petrosgear Makes Their Main Wool at Exactly 380 GSM

The company spent a lot of time figuring out the "sweet spot" — the thickness that works best for serious cold without being so heavy it's uncomfortable.

Here's what they found:

Regular winter base layers (250 GSM) are fine when you're moving, but if you stop — at a mountain camp, on a ski slope, shovelling snow — they just aren't thick enough. The cold creeps in at your shoulders and back.

380 GSM solves this. It's about 50% heavier than a typical wool base layer, which means it traps much more warm air next to your body. It can work as your main warm garment in temperatures as low as −12°C when you're resting, or down to −20°C when you're active.

Why Wool Stays Warm Even When Damp

Wool has a lovely trick that synthetic fabrics don't: it actually generates a tiny bit of heat when it absorbs moisture (like sweat or damp air). It's a natural chemical reaction inside the wool fibre.

This is why wool feels warm even when you've been sweating — it's almost like the wool is working with your body rather than against it. Synthetics don't do this.

What "Dead Air" Means (and Why It's the Real Hero)

Wool fibres are naturally curly and crimped, like little springs. These curls create millions of tiny air pockets trapped inside the fabric.

Still air is an excellent insulator — much better than the wool fibre itself. So wool's real job is to trap that air and keep it from blowing away.

Wind is the enemy because it pushes that warm air out and replaces it with cold air. Thicker, denser wool (like 380 GSM) makes it much harder for wind to do this, almost like a windbreak built into the fabric itself.

The Other Details That Matter

Petrosgear also makes some thoughtful choices in how they build their clothes:

• No elastic (elastane) in the fabric. Elastic threads can clog up the tiny air pockets in wool that keep you warm. Their stretch comes from the knit pattern itself, keeping all those air pockets purely wool.
• Plastic zippers, not metal ones**.** In very cold, wet weather, metal zippers can freeze shut. Plastic ones keep working.
• Very fine wool fibres (16.5 microns). The finer the fibre, the softer it is against your skin. This 380 GSM wool is dense enough to be very warm, but soft enough to wear directly on your skin without itching.

The Practical Takeaway

Think of it like choosing bedding:

• A thin cotton sheet for a warm summer night.
• A duvet for a cold winter night.
• A heavy wool blanket on top of the duvet for an absolutely freezing night when you're not moving at all.

Petrosgear's 380 GSM wool is the "heavy wool blanket" of clothing — designed for those moments when it's bitterly cold and you're not generating much body heat of your own.

For everyday cold-weather activities, lighter wool works fine. But for standing on a frozen hillside, working outside in deep winter, or keeping warm in a chilly house — that's when you want the heavy stuff.

Full article with lots of science: https://petrosgear.com/blogs/news/understanding-fabric-weight-the-comprehensive-wool-gsm-temperature-index

https://petrosgear.com/collections/wool-products/products/merino-wool-blanket

Need to free up the space quickly for more of the green fabric for this summer - decided to make a quick sale of Blankets: $49 per piece.

So if you ever wanted to try wool blanket:

• for camping,
• or home,
• for your pet,
• or as a fabric to make your own sweater/hoodie,

- this might be the time :)

I installed this simple tap water filter in the kitchen, but in two days the filter became already orange. I assume it is either from the old piping or high amount of iron in the water. Will have to consider the whole house in line water filtration system