As someone who’s spent the last decade designing and distributing athletic knitwear, I get that the gear you pull on for a run, gym session, or weekend hike doesn’t just have to work—it has to fit. For too long, plus-size shoppers have been left with either ill-fitting pieces that ride up, dig in, or fall apart after a few uses, or a tiny selection of generic “one-size-fits-most” that doesn’t account for different body types. That’s why this question—“Is athletic knitwear available in plus-size options?”—isn’t just a passing curiosity; it’s a core part of why I started my business in the first place. Let’s break this down, not as a generic industry take, but from the perspective of someone who’s sat in design meetings, argued with fabric suppliers, and tested every inch of our plus-size pieces on real athletes. Athletic Knitwear
First, the short answer: Yes, athletic knitwear absolutely is available in plus-size options, but the quality, range, and accessibility of those pieces vary wildly across the industry. A lot of big-name brands talk a big game about size inclusivity, but scratch the surface, and you’ll find that their “plus-size line” is often just a stretched version of their straight-size patterns, made with cheaper fabric, and released in a limited run that sells out in 48 hours. At my company, we’ve built our entire model around avoiding that exact pitfall, so let’s get into what separates a good plus-size athletic knit piece from a frustrating throwaway.
Let’s start with the basics: athletic knitwear is different from casual knitwear. It’s designed to stretch with movement, wick away sweat, and hold its shape when you lift a weight, sprint a mile, or do a yoga flow that twists your body in unexpected ways. For straight-size knitwear, pattern makers have a baseline—they know where the seams should sit, how much stretch is needed across the chest, shoulders, and waist. For plus-size, that baseline doesn’t just “scale up”; it needs to be completely reworked. A common mistake we see from brands is taking a medium-size compression shirt and adding 2 inches to each side, resulting in fabric that’s too loose in the shoulders and too tight across the torso, or seams that dig into the underbust or hips. That’s why all our plus-size pieces go through a separate pattern design phase, with measurements specifically for size 1X to 6X, and we test every pattern on bodies that match those sizes—not just a sample size 1X model who’s never actually run a 5K.
Fabric is another make-or-break point. Regular athletic knit fabric is usually a blend of polyester, spandex, and sometimes cotton, but for plus-size wearers, the right blend is non-negotiable. Too much stretch, and the fabric bagges out after a few washes; too little, and it restricts movement. We spent six months testing fabric suppliers before landing on our signature 82% polyester, 18% spandex blend for plus-size performance tops and bottoms. It has 4-way stretch that moves with the body, not against it, wicks moisture 30% faster than our old fabric blend, and doesn’t pill or fade after 50 wash cycles—something our customers consistently feedback on. For our knit sports bras, which are a staple for plus-size athletes, we use a thicker, compression-grade knit with seamless underbust bands that don’t dig, and adjustable straps that don’t slide down mid-workout. A lot of generic plus sports bras use thin banding that rolls up after 10 minutes of exercise, but our design team tested 12 different band widths before landing on 2 inches for sizes 1X to 3X, and 2.5 inches for 4X to 6X, so it supports without constricting.
Now, let’s talk about the common gaps that still exist. Even with all the progress in recent years, there are categories of athletic knitwear that are still severely limited in plus sizes. Longline compression tops, for example, which are popular for running and cross-training, often stop at size 2X, and if you find a 3X or 4X version, it’s usually a basic black with no structural support. Knit sweat sets, which are huge for casual workouts and post-gym lounge wear, often only go up to 2X, and the pants have a too-narrow leg opening that makes walking feel awkward. We noticed that gap two years ago, so we expanded our sweat set line to 6X, and adjusted the leg openings to be 2 inches wider than the standard straight-size fit, which has been a game-changer for customers who want a set that works for both gym days and coffee runs. There’s also a gap in specialized athletic knitwear for specific sports: plus-size thermal knit base layers for winter running, plus-size knit volleyball jerseys, even plus-size knit compression shorts for swimming. Most brands leave these to niche retailers, so we’ve been working on expanding our line to fill those gaps, with a thermal knit base layer that’s lightweight enough for 5K runs in 30-degree weather, but thick enough to stay warm without bulk.
One thing that’s super important to us as a supplier is sizing transparency. A lot of brands label their plus-size lines with vague terms like “plus” or “extended sizes,” which don’t tell you anything about the actual measurements. We don’t do that. Every product page on our site has full, detailed measurements for each size, including chest circumference, waist circumference, inseam length, and underbust band size for sports bras. That’s because we’ve heard too many horror stories from customers who ordered a 2X because the brand said it fit up to 200 pounds, but it was too tight across the chest and too long in the torso. For our knit tops, we even offer torso length adjustments for sizes 4X and up, because we know that people with larger body types often have different torso proportions—what fits someone with a shorter torso might not work for someone with a longer one, and vice versa.
Now, let’s talk about why this matters beyond just comfort. Access to well-fitting plus-size athletic knitwear is directly tied to activity levels, especially for people who’ve been excluded from fitness spaces for years. If you can’t find gear that fits right, you’re less likely to lace up your shoes, go to the gym, or join a yoga class. We’ve had customers tell us that our sports bras were the first ones that didn’t give them back pain after a workout, or that our running tops didn’t ride up when they did lunges, which led them to start running their first 5K. That’s why we don’t see plus-size athletic knitwear as a “side line” or a “marketing afterthought”—it’s core to our mission.
But it’s not just about the product; it’s about the business model. For a long time, suppliers were hesitant to invest in plus-size lines because they assumed demand was lower, or that producing smaller runs would be less profitable. That myth is outdated. Recent data from the National Retail Federation shows that plus-size apparel sales are growing twice as fast as straight-size sales, hitting $24 billion in the U.S. alone in 2023. But there’s a catch: customers aren’t just buying more plus-size clothes—they’re buying better plus-size clothes. A 2022 survey by the Council of Fashion Designers of America found that 78% of plus-size shoppers would pay 10-20% more for well-fitting, high-quality athletic wear, compared to a generic stretched version. That’s why we don’t cut corners on fabric, pattern design, or testing for our plus-size pieces—we price them fairly, because we know they’re worth the investment.
That said, there’s still work to be done. Just last month, a customer reached out to us saying she’d been looking for plus-size knit compression shorts for triathlons, and couldn’t find a pair that didn’t chafe or ride up. We’re in the process of developing that exact product, and it’ll be available early next year. We’ve also started working with adaptive athletic organizations to design plus-size knitwear for people with mobility issues, which is another gap most brands ignore. Seamless designs that don’t irritate sensitive skin, adjustable hems for people with prosthetics, and high-waisted shorts that stay in place during wheelchair workouts—these are the pieces that need to be part of the conversation.
If you’re a gym owner, fitness coach, or retailer looking to stock athletic knitwear that actually works for plus-size customers, let’s be clear: you don’t have to settle for generic stretched straight-size pieces. We’ve spent years refining our plus-size lines, from our moisture-wicking performance tops to our supportive knit sports bras, and every piece is designed with real athletes in mind. We offer bulk ordering, custom printing for team gear, and flexible minimum orders, so whether you’re a small cross-fit gym with 10 members or a large retail chain looking to expand your plus-size section, we can work with you. We also offer free sample kits for bulk buyers, so you can test the fit, fabric, and durability before placing a large order.
At the end of the day, the question “Is athletic knitwear available in plus-size options?” should have a simple, clear answer: yes, and it’s only getting better. But it’s up to both suppliers and retailers to prioritize quality over quick size scaling, and to center the needs of plus-size athletes, not just marketing trends. We’ve built our business on that principle, and we’re proud to partner with organizations that feel the same way. If you’re interested in learning more about our plus-size athletic knitwear line, discussing bulk ordering, or sampling our products, reach out to our team to start the conversation. We’re here to help you find the right gear that fits your customers, your team, and your brand.
Casual Knit Pants References
- National Retail Federation. (2023). Plus-Size Apparel Sales Report: 2023 Market Trends and Growth Projections.
- Council of Fashion Designers of America. (2022). Size Inclusivity in Activewear: Consumer Preferences and Industry Standards.
- International Journal of Fashion Studies. (2021). The Impact of Well-Fitting Apparel on Physical Activity Participation Among Plus-Size Adults.
- Athletic Business. (2022). Fitness Gear Inclusivity: Market Demand for Extended Size Athletic Wear.
Zhongshan Aorong Clothing Co., Ltd.
As one of the leading athletic knitwear manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please rest assured to buy customized athletic knitwear made in China here from our factory. For quotation, contact us now.
Address: No. 2, Xingyuan Road, Pingdong Industrial Zone, Sanxiang Town, Zhongshan City, Guangdong Province, China
E-mail: aorong@takvengcn.com
WebSite: https://www.cnaorong.com/
