In that 15k/15k rating, the first number measures the waterproof rating. The “k” is thousands and the “mm” is millimeters. A 15k mm rating means that until you reach 15,000 millimeters of water, in a 1-inch diameter column, stacked on top of the fabric, the water will not penetrate the membrane.

Is 15k waterproof good?

A rating of up to 10K is enough to handle light to average rain for a short amount of time. Ratings between 10K and 15K can handle a moderate amount of rain for much longer, and jackets rated between 15K and 20K or higher are serious shells for heavy, intense rain over a prolonged period.

Is 20000 mm good waterproof rating?

5-10,000mm is ideal for those who spend long days out on the mountain, in all weather conditions; while 10-20,000mm is best for those in wetter climates or skiers and snowboarders who prefer backcountry.

What does waterproof up to 10000 mm mean?

Hydrostatic head, measured in millimeters (mm), is a measure of how waterproof a fabric is. In the case of a 10k or 10,000 mm fabric, if you put a cylinder with inner dimensions of 1” x 1” over a piece of said fabric, you could fill it with water to a height of 10,000 mm (10m) before water would begin to leak through.

Is 15k waterproof good for snowboarding?

Clothing rated between 5,000 mm and 10,000 mm (10k) is a good choice for riders who spend long days out and ski or snowboard in any weather conditions. Avid skiers and snowboarders, especially those in wetter climates, should look for waterproof ratings in the 10,000 mm to 20,000 mm range or better.

Waterproof and Breathability Ratings Explained

What is 20K 20K waterproof?

The tube is filled with water, and the water's height in millimeters when leakage begins becomes the waterproof rating. A piece of fabric that can withstand 20,000mm of water pressure will have a rating of 20,000mm or 20K.

Is 5k waterproof enough?

If you are out for a day in the mountains, you should look for your main waterproof to be rated 5000mm or higher, and most good waterproofs will be around 10,000mm, the highest being around 20,000mm for the wettest conditions. A lower rating means the water will eventually get through if the rain is heavy.

Is 2000mm waterproof enough?

The minimum standard for a jacket to be waterproof is 1,500mm so a jacket with a waterproof rating of 2,000mm would be suitable for moderate rain.

Is Gore-Tex 100 percent waterproof?

First of all, Gore-Tex is a completely waterproof barrier that blocks liquid water from passing through. So unless the Gore-Tex membrane has been punctured or damaged (see third point below), it will block water from entering the boot.

How many mm waterproof is Gore-Tex?

The higher the number, the more waterproof the item will be. Gore-Tex®, for example, has a waterproof rating of 28,000mm.

Is Gore-Tex still the best?

If staying dry and comfortable is your objective then yes Gore-Tex is definitely worth it, even if they are slightly more expensive than their rivals. Gore-tex is equal if not better than all other waterproof membranes which is why Gore-Tex is used for so many different things.

What is the best waterproof jacket?

The best waterproof jackets 2022

• Montane Pac Plus XT waterproof jacket. ...
• Jottnar Odin Hardshell jacket. ...
• Jack Wolfskin Eagle Peak Jacket. ...
• Columbia OutDry Ex Reign waterproof jacket. ...
• Helly Hansen Odin Mountain Infinity Shell Jacket. ...
• Maier Sports Metor M. ...
• Arc'teryx Beta LT Jacket review. ...
• The North Face Retro Mountain Light.

What is 15k 15k waterproof?

In that 15k/15k rating, the first number measures the waterproof rating. The “k” is thousands and the “mm” is millimeters. A 15k mm rating means that until you reach 15,000 millimeters of water, in a 1-inch diameter column, stacked on top of the fabric, the water will not penetrate the membrane.

What is 15k breathability?

It is expressed on the label of your ski clothing in mm like the waterproof rating and is almost always shown immediately after. For example, a jacket with a label showing 20,000 / 15,000 has a waterproof rating of 20k (an excellent rating) and a breathability rating of 15k (which is also extremely good).

Is 5000mm waterproof good for skiing?

We recommend a minimum waterproof rating of 5,000 mm for ski and snowboard outerwear. If you hit the mountains primarily in cold and clear conditions and take regular lodge breaks this level of protection is sufficient.

What is the highest waterproof rating for tents?

Waterproof ratings for tents are measured in millimetres and will usually be between 1000mm (the lowest level considered waterproof) and 10,000mm. The higher the rating, the more waterproof a tent will be. Ratings are measured using a hydrostatic head test but these ratings don't take into account wind driven rain.

Is 2000mm hydrostatic good?

Here are our recommendations as to what to look for.

Any less and water seeping in during a storm is very likely. Bear in mind also that wind-driven rain requires a higher hydrostatic head. An hydrostatic head of 2000mm plus is going to take care of most European rain conditions in all seasons.

Is 3000mm waterproof good for a tent?

To summarise, and help you choose your new tent, a general rule is that a good quality tent with a 1500 – 3000mm waterhead rating on the tent fly, along with a 6000mm+ rating on the floor or one made from durable polyethylene or PVC, is going to keep you sheltered and dry in all but the absolute worst of conditions.

What is the difference between waterproof and Gore Tex?

In conclusion, the three membranes, Gore-Tex, Dermizax and Sympatex, are all waterproof, windproof and breathable. While the Gore-Tex-Infinium membrane belongs to the water-repellent membranes, it is therefore not 100 % waterproof. But it is windproof and breathable and serves as insulation as well.

What is a good rating for ski jacket?

A 20k jacket is on the higher end of the scale and will ensure that no matter what the weather is you will be kept warm and dry. The trick to well rated jackets is that they keep the water on the outside while releasing the moisture you make from the inside.

What does waterproof to 5000mm mean?

5,000mm or 5 metres (16.4 ft) is how far you could fill the tube before it would start to leak through the fabric. So in theory, you could stand out in the rain until 5,000mm of rain fell before you would start getting wet.

How is GoreTex rated?

The RET rating is often used by GoreTex to represent the breathability of their garments. This rating is the inverse of the MVT in that a lower rating means better breathability. Ratings will often be shown as a less or more than figure, ie. RET

Is Gore-Tex 20k?

GORE-TEX: This is the most common proprietary waterproofing technology outerwear brands will license. The pores in a GORE-TEX membrane are 700 times bigger than a water vapor molecule to allow breathability. They are also 20,000 times smaller than a drop of water which means moisture can not penetrate the membrane.