Before we answer this question, it’s worth clarifying what “10D” actually means. 10D is referring to the fabrics denier, which is the standard unit of weight for a single thread/yarn of any given fabric.
The dernier number is based on the weight of 9km (don’t ask why) of a thread of a specific thickness. So, 9km of a 10D thread weighs 10g, and 9km of a 20D thread is 20g, and so on.
As you can see, the denier tells us how heavy an individual thread of fabric is… but not much else. This is why you can have two 10D fabrics made from different materials, with completely different weights, thicknesses and durability levels.
When it comes to judging how durable a tent’s fabric is, denier is just one tiny piece of the puzzle. Other factors like the material (eg. ripstop nylon vs polyester), thread count, weave pattern, and coating composition are also important.
Our Lightweight Tent’s outer fly is made from 10D ripstop nylon with a 1,500mm silicone/PU coating, and the floor is made from a 20D ripstop nylon with a 2,000mm silicone/PU coating.
We utilise a high-tenacity ripstop nylon with a square grid, meaning there are thicker, stronger threads woven in a square grid pattern throughout the fabric. Combined with a high thread count, this dramatically increases the tear strength while keeping the overall weight very low.
Then there’s our dual silicone/PU coating. We’ve specially formulated the coatings to offer the best performance and longevity in outdoor settings. Not only is this coating waterproof, it also increases the tear strength, UV-resistance and durability of the fabric. The silicone coating soaks in and bonds with the fabric, rather than just sitting on top.
On the inside of the tent fly and floor, we’ve opted for a thin polyurethane (PU) layer, which provides better adhesion with seam tapes, ensuring fewer potential leak points. This also reduces some of the slipperiness that can come with silicone coated tent floors.
So 10D outer fly and 20D floor might not sound like much, but the reality is that it’s not the denier that makes this fabric exceptionally durable, but all these elements working together.
But “durable” doesn’t mean indestructible.
Your Lightweight Tent can (and will) still sustain damage if it’s stabbed by sharp branches, dragged over debris, or exposed to heavy abrasion. We recommend using the Lightweight Footprint to protect the tent floor, and avoid setting up in places where shrubs or branches are rubbing against the fly.
We back our Lightweight Tents with a Lifetime Warranty* against manufacturing defects in materials or workmanship, but that’s not a free pass to abuse it. Take care of your tent, and it will take you further.