Freelance Sportswear & Activewear Designer | Custom Sportswear Designs & Tech Packs

Want to Design Custom Sportswear For Your Brand?

Here’s How I Can Help

At Katlyn Yee Designs, I specialize in bringing custom sportswear and activewear collections to life for both established athletic brands and aspiring startups worldwide. Whether you’re an industry leader preparing your next season’s line or a new brand looking to make a bold entrance, I offer tailored freelance sportswear design and comprehensive technical design services. Together, we’ll bring your vision to the manufacturing stage with ease, elevating your brand to create high-quality, performance-driven products that stand out in the competitive market.

Your Activewear Vision Starts with an Expert Freelance Sportswear Designer

Hi there, I’m Katlyn! (Kate-lynn)

As an expert freelance sportswear and activewear designer with over 12 years of experience, I specialize in transforming custom ideas into high-performance, innovative collections. Whether you’re pushing the boundaries of performance-driven designs or crafting garments that capture your brand’s essence, my design approach is personalized, collaborative, and results-oriented. I’m here to help you navigate the complexities of custom technical activewear design, ensuring the process is seamless and creative while focusing on your brand’s success.

Your Solution for Designing Complex Activewear

Designing activewear goes beyond aesthetics. It’s about creating performance-driven, high-quality garments that not only look great but also perform and endure in real-world conditions. Many clients I work with are often surprised by the level of detail and planning required to design custom activewear that balances comfort, freedom of movement, durability, sustainability, functionality, and ergonomic fit—while working together in harmony.

That’s where I come in. When you partner with me, you’re not just hiring a dedicated freelance activewear designer—you’re working with an expert who understands both the creative and technical design complexities of activewear. I’ll provide full support and guidance as I walk you through the design process, making it manufacturing-friendly, seamless, and enjoyable. Together, we’ll tackle the intricate details required to create a dream activewear and sportswear collection that not only makes your brand stand out but also connects with your target audience.

Strategic Concept

Tech Packs

Mood Boards

Technical Flat Sketches

Strategic Concept • Tech Packs • Mood Boards • Technical Flat Sketches •

Why Work with Katlyn Yee Designs?

Custom sportswear and activewear designs by Katlyn Yee, showcasing mood boards, technical sketches, and tech packs for garment manufacturing.

Your Design Goals, Realized

Are you looking for custom sportswear and activewear that not only resonates with your audience but also elevates your brand’s visibility? As an expert freelance sportswear and activewear designer, I specialize in turning complex ideas into high-performance garments that capture your brand identity and deliver exceptional results.

The Complexity of Activewear Design, Simplified

Designing activewear goes beyond just sketching a concept and moving forward. It requires a deep understanding of movement, fabric technology, performance features, and customer needs. When you work with me, you’re not just hiring a designer—you’re partnering with an expert who specializes in performance-driven activewear design. Together, we’ll craft garments that enhance comfort, mobility, and durability, ensuring your collection stands out in the competitive sportswear and activewear markets.

Solving Your Design Challenges

My design process is built on understanding your customer’s needs, from technical fabrics to technical design details that enhance performance. This approach leads to collections that are functional, build loyalty, and help your brand stand out in the competitive market.

Collaborative Process That Makes the Difference

Unlike other designers who may jump straight to technical sketches, I spend time planning every detail in the concept phase so your designs are functional, beautiful, and ready for garment manufacturing. You won’t feel overwhelmed—I’ll be with you every step of the way

Seamless Transition to Garment Manufacturing

When it’s time to bring your designs to life, you’ll feel fully prepared to work with your garment manufacturer. Your tech pack will include meticulously detailed, manufacturer-friendly callouts, construction techniques, and accurate technical sketches with precise measurements — all so you can confidently request your first prototype fit sample and get accurate cost estimates, setting you up for success.

Personalized Activewear Design Services:

A Simple, Efficient Process

Mood board and custom garment concept for an activewear collection designed by Katlyn Yee.

Step 1

Collection & Garment Design Concepts for Activewear

Capture the essence of your activewear brand with a service that transforms your initial ideas into a well-defined design concept. Through a collaborative process, I’ll guide you in turning your sportswear or activewear ideas into a solid, market-ready concept. This step includes mood boards, market research, color palettes, and individual garment concept pages focused on both functionality and aesthetic appeal. We’ll work together to align each piece in your collection with your brand’s vision, setting a strong foundation for your activewear line.

TDetailed technical flat sketches of sportswear garments for manufacturing communication.

Step 2

Accurate Technical Flat Sketches for Garment Manufacturing

Once your garment design concepts are approved, we’ll move into creating precise technical flat sketches. These detailed, non-artistic drawings provide essential front and back views of each garment, outlining critical design elements like seam details, stitch placement, and trim specifications. These sketches serve as a vital visual blueprint for communicating with manufacturers, ensuring accuracy during the production phase.

Comprehensive tech pack for activewear garments, showing construction and specification details.

Step 3

Comprehensive Tech Packs

Before moving to garment manufacturing, your activewear line will rely on detailed tech packs that document every technical and design aspect of each piece. The tech pack includes construction details, measurements, fabric specifications, logo placements, and a bill of materials. This documentation acts as a blueprint for manufacturers, helping them produce accurate prototypes while reducing errors and maintain the integrity of your original design.

Katlyn Yee selecting fabrics for custom activewear designs.
Katlyn Yee working on activewear designs using a laptop.

Meet the Designer Behind the Creations

Behind every custom-designed activewear collection lies commitment, passion, and expertise. As an expert freelance sportswear and activewear designer, I bring over 12 years of experience in creating custom, performance-driven designs. I guide activewear brands from the initial idea to creation, while equipping you with all of the essential design documents you need to confidently step into garment manufacturing. Learn more about my journey and discover why I have become a trusted name in freelance activewear design.

Katlyn Yee working with a dress form to design custom sportswear.
Katlyn Yee creating a detailed tech pack for custom activewear garments

Design Solutions That Save You Time and Money

Exclusive Design Collaboration

I selectively engage in a limited number of projects annually to guarantee that each collection receives my undivided attention. With personalized guidance, you will gain the benefits of a custom-tailored, one-on-one design partnership. Your project isn't just another job on the list; it is the focal point of a dedicated and thoughtful design process.

Designed for Functionality

Exceptional activewear requires more than just aesthetics; it needs to be built on a foundation of technical design that emphasizes functionality. With my expertise, I deliver design solutions that enhance your brand’s visual appeal while also focusing on fit, comfort, and movement—key factors in high-performing activewear.

Clear Communication

Clear communication between your design and manufacturer is crucial for seamless garment manufacturing. My tech pack service will provide you with meticulously detailed documentation, including construction callouts, fabric specifications, and precise measurements. These tech packs minimize costly errors and back-and-forth during the garment manufacturing process, speeding up your production timeline and reducing costs.

Katlyn Yee sketching activewear designs as part of a custom design process.

Ready To Get Inspired?

Immerse yourself in a world where design and innovation converge. Explore my curated collection of custom activewear design collaborations, each showcasing a blend of creativity, innovation, and technical expertise.

Kind Words from Incredible Clients

  • Emily Silber, Owner, Emily Marie Apparel, LLC

    -Emily Silber, Owner, Emily Marie Apparel, LLC

    “Where do I begin, Katlyn is AMAZING to say the least! I have been working with her for over a year now and I am so grateful to have her a part of our team! She is so incredibly talented and creative. She truly has helped bring my visions to life and we had so much fun in the process! She has taught me so much and has brought so much value to Emily Marie Apparel!”

  • Allison Herman, CEO of Dragonwing, shares her experience working with Katlyn Yee on custom fashion design.

    -Allison Herman, CEO, Dragonwing

    “Katlyn Yee is a remarkable fashion designer who effortlessly combines creativity and elegance in her designs, producing garments of unparalleled beauty and quality.  What truly sets Katlyn apart, however, is her dedication to her craft and her clients. Working with her is an absolute pleasure. She is a true professional who listens intently to her client's preferences and needs, ensuring that every garment she designs is not just a piece of clothing, but a work of art tailored to perfection. Katlyn not only possesses exceptional design skills but also excels in communication, ensuring that every client's vision is meticulously realized with grace and style. Katlyn Yee is undoubtedly a rising star in the fashion world, destined for even greater success and recognition.”

  • Laura Berens, CEO & Founder of Love & Fit, praises Katlyn Yee’s design services.”

    -Laura Berens, CEO & Founder, Love & Fit

    “Katlyn was a dream to work with! She worked fast and really understood the look and design I was going for. I would recommend her!”

Key to Your Success

First Look, Lasting Impact: Activewear Designs That Impress

From Vision to Garment Manufacturing

With my simple design process, you’ll receive everything you need, from strategic custom sportswear design concepts to comprehensive technical design services, fully preparing you for garment manufacturing success—from concept to tech pack creation.

Designed For Your Customers

Understanding your brand’s audience is vital to designing activewear that truly resonates. Together, we will research and understand your audience’s needs, preferences, and challenges, culminating in distinctive and innovative activewear that gains recognition and retains a loyal customer base.

Empowerment and Confidence

Embark on your brand’s journey with empowerment and expert-backed support. With a thorough understanding of the pre-production landscape, you’ll benefit from the 12 years of experience I’ve gained, so you can avoid the challenges and obstacles I’ve already overcome. By partnering with me, you can move forward with confidence, knowing you’re fully prepared to succeed in garment manufacturing.

STEP 1 Book a Free Discovery Call

The first step in bringing your custom activewear designs to life is to inquire and schedule a free discovery call. I’m excited to learn more about your vision and explore how we can collaborate to turn it into reality.

STEP 2 Fill Out the Inquiry Form

To better understand your goals and ideas, please fill out the inquiry form. This allows me to prepare for our discovery call and ensure we’re aligned from the start.

.STEP 3 The Discovery Call Day

During our call, we’ll discuss your project in detail—your goals, needs, and any questions you may have about my design services. I’ll explain how my expertise can support your activewear design goals and vision.

STEP 4 Personalized Proposal

Following our discovery call, I’ll send a tailored proposal that outlines your project’s objectives, a detailed price estimate, and a timeline, all customized to your specific needs.

STEP 5 Contract & Project Deposit

Once you’re ready to proceed, I’ll send the contract and deposit invoice to reserve your project’s spot on my calendar.

STEP 6 Let’s Get Started!

After receiving the signed contract and deposit, we’ll schedule our kick-off meeting and introduce you to your personalized client portal. From there, we’ll work together to design your custom activewear collection!

Ready To Design Your Dream Activewear Brand?

Here’s How To Get The Process Started!

Ready to Elevate Your Activewear Line?

Katlyn Yee’s design workspace featuring sketches, tools, and a laptop displaying activewear designs.

SCHEDULE YOUR FREE DISCOVERY CALL

Your brand deserves the spotlight. Let’s discuss how we can create a custom activewear collection that captivates your audience and showcases the excellence of your brand. Book a free discovery call with me today and take the first step toward designing an activewear collection that’s as ambitious as you are.