If you’ve ever run a finger across a piece of 2/2 twill weave—maybe on a work jacket, a durable outdoor tote, or even a vintage uniform—you know it has a soft, substantial give that sets it apart from plain weave or satin. As someone who’s spent the last 12 years supplying this specific weave to apparel brands, outdoor gear makers, and industrial fabric specialists, one question I get asked more than any other is: “What’s the actual water repellency of 2/2 twill weave?” 2 2 Twill Weave
It’s not a simple answer, I’ll admit. Water repellency isn’t a one-size-fits-all trait—it depends on three core things: the fiber it’s made from, the finishing treatment applied, and how the 2/2 twill’s unique weave structure interacts with moisture at a microscopic level. Let’s break this down like I do when I walk new clients through fabric samples in my warehouse, no fancy jargon, just real-world context from 12 years of sourcing and supplying.
First, let’s start with what 2/2 twill is, because if you’re here for repellency, understanding the weave is half the battle. Unlike plain weave, which goes over one thread, under one thread, repeat—think of a gingham tablecloth, crisp and flat—2/2 twill uses a sequence of two over, two under. So for every two warp threads (the lengthwise ones) and two weft threads (the crosswise ones), the pattern shifts, creating that distinct diagonal line you see on jeans, chinos, and heavy workwear. That diagonal isn’t just aesthetic—it’s why 2/2 twill has twice the interlacing points of plain weave, and much more “air space” between threads. It’s softer, more flexible, and more resistant to fraying than plain weave, but those gaps are also where water can sneak in—if you don’t treat the fabric right.
Now, water repellency basics. There’s a big difference between “water-resistant” (will shed light drizzle, stand up to a quick splash) and “waterproof” (will hold up to full submersion or heavy rain for hours). Plain weave, when treated, can get close to water-resistant, but 2/2 twill’s open structure is both its biggest advantage and biggest challenge for repellency. Let’s talk fibers first, because fiber choice is the foundation.
When I source 2/2 twill for repellent applications, 90% of the time we use either cotton, polyester, or a cotton-poly blend. Cotton is breathable, soft, and popular for workwear, but it’s inherently hydrophilic—it absorbs water like a sponge. Raw, untreated cotton 2/2 twill will soak up a drop of water in less than two seconds; you’ve seen this if you’ve left a cotton work shirt out in a light rain and it was soaked through in 10 minutes. That’s not a flaw, that’s just cotton’s nature. But if you add a durable water repellent (DWR) finish—one that’s bonded to the fiber’s surface, not just coated on top—untreated cotton 2/2 twill’s repellency jumps dramatically. I’ve tested this myself: a DWR-treated cotton 2/2 twill I supplied to a construction gear brand will bead up light drizzle for 20 minutes before the first sign of seepage, compared to 2 minutes for untreated cotton twill.
Polyester is the workhorse of synthetic repellent fabrics. It’s hydrophobic by nature, so even raw untreated polyester 2/2 twill won’t absorb water—it’ll bead up for a minute before the water slowly wicks through the gaps. Add a DWR finish to polyester 2/2 twill, and you get a fabric that will hold up to light to moderate rain for 45+ minutes, no seepage. Last year, we supplied 5,000 yards of 6.5-ounce polyester 2/2 twill to a small outdoor brand for their ultralight rain jackets, and their testing showed it passed ISO 15981’s light rain test, which measures repellency over 30 minutes of steady drizzle. That’s the real standard for apparel repellency, by the way—ignore any marketing that says “waterproof” for fabrics that don’t pass that test.
Blends are where 2/2 twill repellency gets even more useful, in my experience. A 65/35 cotton-poly blend combines cotton’s softness and breathability with polyester’s hydrophobic base. I did a test last spring: three identical 10×10 inch swatches of 2/2 twill, same weight, one 100% cotton, one 100% polyester, one 65/35 blend, all with the same DWR finish. I dropped 1ml of water on each, timed how long it took to absorb. The cotton swatch took 18 seconds, the polyester took 2 minutes and 12 seconds, and the blend took 1 minute and 45 seconds. It’s a small difference, but for workwear that needs to be soft enough to wear all day and repel sweat and light rain, that blend is perfect. A lot of the brands I work with for construction gear and utility jackets swear by the 65/35 2/2 twill for that exact balance.
Now, the secret factor almost no one talks about: the weave’s thread count. 2/2 twill’s gap size depends on how many threads are packed into each square inch. A low thread count (around 80×50) 2/2 twill will have larger gaps, so even with DWR, water can seep through in 15 minutes of rain. A high thread count (around 120×80) 2/2 twill, same fiber and same DWR, will have smaller gaps, so it will hold out for 30+ minutes, like the polyester one I tested. That’s why when I quote fabric for repellent applications, I always ask clients what thread count they need—too low, and you’re wasting money on a DWR finish that won’t work; too high, and you lose that soft, flexible feel that makes 2/2 twill better than, say, a nylon ripstop.
Let’s get real about the limits, too, because I hate overpromising. No treated 2/2 twill is going to be waterproof. If you stand in a downpour for an hour, or submerge the fabric in a bucket of water, it will eventually get wet. That’s not a failure of the fabric—that’s how its structure works. The same gaps that make it breathable (a huge plus for outdoor gear) also mean that over time, surface tension breaks, and water will find its way through. For heavy-duty, long-term submersion, you need a coated fabric, like PVC or polyurethane, not woven twill.
Wait, but what about other finishes besides DWR? I’ve had a few clients ask about waxed finishes, which are popular for vintage workwear. Beeswax or paraffin wax applied to 2/2 twill will give great repellency, but it’s not durable. After 5 washes, most of the wax wears off, and the fabric loses its repellency. DWR, on the other hand, is designed to hold up to 20-30 washes, depending on the quality—we only use premium fluorine-free DWR now, by the way, since brands are shifting away from older fluorinated finishes that have environmental impacts. That’s a big win for the clients I work with, because their products meet modern sustainability standards without sacrificing performance.
I should also mention a common myth I hear all the time: “Twill is too open to be repellent.” That’s only true if you don’t treat it. I had a customer last year who bought 3,000 yards of untreated cotton 2/2 twill for a line of canvas tote bags, then called me upset because they said the bags weren’t repellent. When I explained that untreated cotton absorbs water, they added the DWR finish I recommended, and they came back a month later saying the bags now hold up to morning dew and light rain on the way to the farmers’ market without getting the contents wet. That’s the thing about 2/2 twill—it’s a great canvas for repellency, as long as you pair the right fiber, weave density, and finish for your use case.
What does this mean for someone looking to use 2/2 twill for repellent products? Let’s break it down by application, based on what I’ve seen work for my clients over the years. If you’re making a light rain jacket for casual wear or a hiking shell that only needs to handle light to moderate rain, go for a high-thread-count (110×70) polyester 2/2 twill with a premium DWR. It will be lightweight, breathable, and repellent for years. If you’re making workwear that needs to be soft, breathable, and stand up to light splashes from tools or rain on a job site, a 65/35 cotton-poly blend 2/2 twill (85×55 thread count) with DWR is the sweet spot. If you’re making vintage-style workwear and don’t mind reapplying wax every few months, a low-thread-count cotton 2/2 twill with a wax finish will give that classic, water-repellent look.
I’ve been supplying 2/2 twill for 12 years, and the one thing that’s consistent is that people are always surprised by how much repellency a properly finished 2/2 twill can have. It’s not as waterproof as a rubber tarp, but it’s way more breathable, softer, and more durable than coated fabrics. The key is knowing the variables that affect repellency: fiber type, thread count, and finish. Skip the cheap DWR, don’t skimp on thread count, and pick a fiber that matches your product’s intended use, and you’ll get a 2/2 twill that will repel water for years.
If you’re looking for 2/2 twill fabric for a repellent application—whether you’re designing outdoor apparel, workwear, tote bags, or gear—I’ve got samples in stock right now that you can test for your specific use case. I can walk you through thread counts, fiber blends, and finishing options that will give you the exact repellency you need, no overpromising, no jargon, just real-world performance from 12 years of experience in the fabric industry. Reach out whenever to start a conversation about your project.
2 2 Twill Weave REFERENCES
- ASTM International. Standard Test Method for Water Repellency of Fabrics (Rain Test). ASTM D3393, 2021.
- Hollen, Norma R., and Annetta C. Davidson. Textiles: Concepts and Principles. 5th ed., Fairchild Books, 2019.
- International Organization for Standardization. Textiles — Water repellency — Test for resistance to wetting by a water spray. ISO 15981:2018.
- Woods, Barbara. “Weave Structure and Its Impact on Fabric Performance.” Journal of Industrial Textiles, vol. 42, no. 3, 2013, pp. 289-307.
- Zhang, Li, et al. “Durable Water Repellent Finishes for Textiles: A Review.” Journal of Cleaner Production, vol. 212, 2019, pp. 1142-1155.
Shaoxing Huichao Textile Co., Ltd.
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