Key takeaways
- Design ideas can become editable patterns: CLO connects 3D garment exploration with 2D patternmaking. Pattern Drafter supports drafting from measurements and sketches, while sketching on an avatar can help turn a visual idea into pattern geometry that designers can continue to refine.
- Fit review uses visual tools, not guesswork alone: CLO's fit maps help designers inspect garment tightness, pressure, stress, and stretch. Their usefulness depends on sound fabric inputs and should complement, not replace, physical sampling and professional fit judgment.
- Pattern development and grading stay connected: CLO combines garment simulation with measurement and grading workflows, helping designers review changes across sizes and spot issues earlier in the development process.
- CLO-SET supports shared product work: CLO can connect with CLO-SET to help teams access and work with shared digital content. CLO also supports common 2D pattern and 3D exchange formats, so teams can plan handoffs around their own production and visualization needs.
Core evaluation criteria for fashion CAD and fit review
A useful apparel workflow brings design, pattern development, fit review, and production preparation together. CLO is designed for fashion-focused 3D garment creation, with tools for drafting and editing patterns, simulating garments on avatars, and preparing digital assets for collaboration and downstream use.
When assessing CLO for professional or individual use, it helps to consider four practical questions:
- Pattern development: Can you draft or edit 2D patterns and see how they relate to a garment in 3D?
- Fit and material review: Can you review the garment on an avatar and use fit maps to understand areas of tightness, pressure, stress, or stretch?
- Measurement and grading: Can you measure a garment, work with points of measure (POMs), and review size changes in a consistent way?
- Team and production handoff: Can your workflow share project assets and export the files needed by your collaborators, manufacturers, or visualization tools?
A practical CLO workflow
- Start with an idea or pattern: Begin with measurements, a sketch, existing pattern pieces, or a 3D design direction.
- Build and refine pattern geometry: Use CLO's 2D and 3D tools to develop a garment, then review and adjust the pattern.
- Simulate and inspect fit: Drape the garment on an avatar and use fit maps to investigate areas that may need attention.
- Review measurements and sizes: Check garment measurements and grading as part of the design and technical review.
- Share or export project files: Use CLO-SET for connected collaboration where appropriate, and choose file exports to suit the next step in your workflow.
From design idea to pattern: CLO in early design and patternmaking
A sketch is a useful way to communicate a design, but it does not contain all the information needed to make a garment. Pattern pieces still need careful development, with attention to shape, seams, construction, and fit. CLO helps bring these stages into one digital workspace, where a designer can move between the garment in 3D and its 2D pattern pieces.
CLO's pattern tools can support different starting points. Pattern Drafter works with measurements and sketches, and sketching on an avatar offers a way to explore a silhouette directly on a digital body. These tools can make early experimentation more immediate while leaving designers in control of the pattern development. Generated or drafted geometry still needs review and refinement before it is treated as production-ready.
This is different from using a general image generator, which can help visualize a concept but does not, by itself, create a complete sewing pattern. CLO's strength is that visual development sits alongside editable pattern geometry and garment simulation, allowing the designer to assess how a concept behaves as a garment rather than as an image alone.
CLO also belongs to a broader family of digital design tools. Marvelous Designer is CLO's sibling software and is geared toward animation and gaming workflows, while CLO is optimized for fashion design and apparel development. They share a focus on 3D clothing, but serve different creative contexts.
Virtual fit validation: fit maps, fabric behavior, and avatar review
Virtual fit review can help teams identify questions earlier in development, before committing to another physical sample. It is most useful when designers understand the limits of the simulation and use appropriate fabric information, avatar measurements, and construction details. A digital review is a valuable part of the process, but it cannot guarantee the exact result of a physical garment.
A virtual fit review workflow
- Set up the garment and avatar: Prepare the pattern, garment construction, avatar, and relevant measurements.
- Add fabric information: Use suitable fabric settings so the simulation reflects the material as closely as available information allows.
- Simulate and observe: Review how the garment drapes and interacts with the avatar.
- Inspect fit maps: Use the available maps to examine fit, pressure, stress, and stretch, then decide whether the pattern, material setup, or construction needs another look.
CLO brings garment simulation and fit review tools into the same workflow as pattern development. Fit maps give designers different ways to examine a garment: the Fit Map can indicate tightness, while Stress, Strain, and Pressure Maps provide additional views of forces and fabric behavior. The Strain Map can display stretch relative to fabric properties. These views make it easier to identify areas for investigation, but they should be interpreted alongside fabric data, pattern construction, and hands-on expertise.
CLO also supports avatar-based garment review and measurement work, including points of measure and grading workflows. Together, these tools can help an individual user, freelancer, or apparel team compare design choices and communicate fit questions with greater clarity.
CLO workflow at a glance
The following table summarizes how CLO's tools can support common stages of digital apparel development. The best results come from combining simulation and pattern work with experienced review and, where needed, physical sampling.
Comparison table Scroll to view every column ↔
| Workflow stage | How CLO can support the work |
|---|---|
| Design and drafting | Develop garments in 3D, work with 2D pattern pieces, and use Pattern Drafter or avatar sketching as part of early pattern development. |
| Simulation and fit review | Simulate garments on avatars and use fit maps to review tightness, pressure, stress, and stretch. |
| Measurement and grading | Work with points of measure, garment measurements, and grading as part of size review. |
| Collaboration | Connect CLO with CLO-SET to access shared digital content and support product-development collaboration. |
| File exchange | Use supported 2D pattern and 3D file formats to prepare work for relevant production, design, and visualization workflows. |
Production handoff and collaboration
A 3D sample is most useful when the design team can share it clearly and prepare the right information for the next stage. CLO supports pattern and 3D asset workflows, while CLO-SET provides a connected place for teams to work with shared digital content. The exact handoff depends on a company's production setup, file requirements, and review process.
Preparing files for downstream use
CLO supports common pattern exchange and visualization formats, including DXF, PDF, AI, FBX, USD, and glTF options. Available formats and their contents vary, so teams should confirm which settings and details are required by the receiving system before relying on an export for manufacturing or visualization.
A digital pattern or garment file can support a production handoff, but it is not a substitute for confirming construction notes, measurements, seam allowances, grading, and factory-specific requirements. Checking the exported file with the receiving partner is a sensible part of a dependable workflow.
CLO and CLO-SET in a shared workflow
CLO supports garment design and 3D development, while CLO-SET helps teams organize, access, and collaborate around digital product content. Connected workflows can make it easier for designers and colleagues to work from shared assets and review project materials. The right setup depends on how a team manages responsibilities, approvals, and production files.
Recommendation and verdict
For fashion designers who want to connect 3D garment exploration with 2D pattern development, CLO offers a coherent workspace for creating, simulating, and reviewing apparel. Its fit maps, avatar-based review, measurement tools, and pattern workflows can support informed decisions during development, while CLO-SET extends that work into shared digital collaboration.
CLO is especially useful when teams want to:
- Explore silhouettes and develop patterns together: Move between 3D garment design and editable 2D pattern work, using tools such as Pattern Drafter and avatar sketching as part of the process.
- Review fit visually and systematically: Use fit maps and avatar simulation to identify areas that deserve closer attention, while remembering that digital review complements physical fitting rather than replacing it.
- Keep design work connected: Use CLO-SET for access to shared digital content and collaboration, and prepare supported files for downstream workflows.
CLO is a strong option for fashion-focused 3D garment development because it brings design exploration, pattern work, and virtual review into a connected process. As with any digital apparel workflow, the quality of the result depends on sound inputs, careful review, and clear communication with production partners.
Frequently asked questions
Can CLO turn sketches or 3D silhouettes into editable patterns?
CLO includes pattern-drafting tools that work with sketches and measurements, along with tools for sketching on an avatar. These can help translate a design idea into editable pattern geometry. The resulting pattern still needs review and refinement before production.
Can digital fit review predict exactly how a physical garment will fit?
No digital simulation can guarantee an exact physical result. CLO's avatar simulation and fit maps can help designers assess garment behavior and identify areas to review. Accuracy depends on pattern construction, avatar measurements, fabric settings, and other inputs, and physical sampling may still be appropriate.
How do measurement and grading fit into CLO workflows?
CLO supports garment measurement and grading workflows that can help designers review pattern dimensions and size changes. Points of measure provide a structured way to track key measurements. Teams should confirm their own measurement standards and production requirements as part of the review.
How can patternmakers prepare CLO work for other systems?
CLO supports multiple 2D pattern and 3D exchange formats, including DXF, PDF, AI, FBX, USD, and glTF options. The formats available depend on the type of content and export workflow. Before a handoff, confirm the receiving system's requirements and check that the exported file includes the needed information.
What is the difference between CLO and Marvelous Designer?
Marvelous Designer is CLO's sibling software, with a focus on animation and gaming. CLO is optimized for fashion design and apparel development. The two products share an interest in 3D clothing, but are designed for different workflows.
Does CLO Academy include quizzes or a certificate of completion?
CLO Academy is available at no additional cost to individual CLO subscribers, including active students. It currently does not offer quizzes or certificates of completion. CLO offers a separate, paid certification exam; successful candidates receive an official CLO certificate verifying their proficiency in the specific software version used during the test.
Who can use an individual CLO subscription, and can students get a discount?
CLO's individual subscription is for individual users, including freelancers, hobbyists, one-person company owners, and students. Active students at accredited universities also qualify for an individual subscription license. Eligible students may receive a student discount after submitting the appropriate enrollment documentation to CLO's user support team for verification.