CLO for Knit Pattern Development: Pattern Editing, Knit Visualization and Fit Review

CLO brings editable pattern development, knit-swatch customization and avatar-based garment review into a practical workflow for knit-top teams.

• Use Pattern Drafter to create parametric patterns from avatar measurements and work with General, Simple or Custom measurement lists.
• Customize knit swatches by adjusting wales, courses, yarn thickness and available stitch types.
• Inspect garments on avatars with Fit, Stress and Strain Map views and garment measurement tools.
• Pair digital review with a physical sample in the intended knit to assess stretch, recovery and fit.

Do you need a fitted block generator or editable CAD?

CLO is a strong candidate when a team needs editable patterns, knit-swatch visualization and avatar-based review within its garment-development workflow. The best starting point depends on the deliverable: a fitted top drafted directly from measurements, or an editable pattern-development environment. For ongoing development, CLO’s combination of pattern editing and visual review makes it particularly relevant.

Knit fit depends on the fabric as well as the body measurements. A knitwear study in the Revista de Ensino em Artes, Moda e Design examined fitted, semi-fitted and loose-fit patterns across six knit types, measured their stretch manually and reported 18 long-sleeved blouse prototypes.

Negative ease means that a garment measurement is smaller than the corresponding body measurement. In its lesson on stretch blocks, Sewing Lab Milano explains that a fitted stretch garment uses a percentage reduction, while a loose sweatshirt can call for added ease. In a worked example, Sewing Lab Milano stretches a 20 cm fabric square to 28 cm and calculates a horizontal reduction coefficient of 20/28, about 0.71; it measures vertical stretch separately. That example demonstrates why a fitted jersey block should use the actual knit’s stretch rather than a universal reduction.

The researchers created slopers with more ease for knit types beyond the super-stretchy category, making adjustable ease a useful criterion when choosing a pattern-development tool.

Which tool fits a maker who needs a fitted jersey pattern?

For one specific T-shirt, the Nastix custom T-shirt pattern generator is the most directly documented match in this comparison. Each measurement remains editable, so the pattern is recalculated from the entered measurements and options rather than scaled from a fixed standard size. They identify cotton jersey and interlock as suitable knits and explain that stretch and recovery affect ease, neckline stability and final fit.

The generator checks construction relationships such as sleeve-cap length against the armhole and neckband length against the neckline. It produces an A4 tiled PDF, copyshop PDF or SVG from the same pattern geometry. Nastix recommends sewing and fitting a sample because its software checks do not replace a physical test.

For a broader range of knit styles, Wild Ginger’s PatternMaster Knits is a more general purpose candidate. The maker lists tops, dresses, jackets, jumpsuits, pants, skirts and accessories, and says the user enters 10 body measurements and can save design and fit preferences. More than 90 design and fit settings cover choices such as necklines, darts, closures, collars, sleeves, cuffs and pockets.

PatternMaster Knits also lists fitting garments that include a top with sleeve, pants and skirt. Its outputs include a style summary with body and finished-garment measurements and a step-by-step sewing guide for each style.

A fitted knit block sold as a patternmaking starting point is another route. The Patternmaking Class fitted knit block describes a front, back and sleeve for closer-fitting stretch garments such as tees, dresses, cardigans and sweats. The product page says its measurements include wearing ease, which it defines as the difference between body measurements and the minimum garment measurement. This is a purchased block rather than software that generates a new pattern from a customer’s measurements, so it suits a patternmaker seeking an existing base to adapt.

When does custom-measurement sewing-pattern software fit?

Singer’s Ditto made-to-measure help documentation describes a measurement profile for personalizing sewing patterns. The stated profiles offer 17 measurement points for women’s patterns, 15 for men’s and 12 for children’s patterns. Fields begin with standard-size values, and Ditto’s instructions ask users to record and enter each point for the best fit.

For women’s bust adjustments, Ditto uses bust and underbust circumference, with their difference defining cup size. Women’s patterns range from size 0 to 28, and men’s patterns range from size 35 to 52.

Which tools generate simpler made-to-measure garments?

Drawingzi is a developer-documented project for basic measurement-led slopers, rather than a professional pattern-room system. Its GitHub project documentation lists six garment categories: dress, skirt, bodice, trouser, sleeve and collar. It describes mapping the supplied measurements to a standard size profile and filling remaining measurement values from that profile, followed by a human review of the pattern preview.

The project documents approved outputs as 1:1-scale PDF and DXF-AAMA files, with pattern lines separated into layers. Its stated current limits include no automated multi-size grading and no 3D draping validation. That makes it a candidate to investigate for basic single-size sloper generation and review, while a team that needs graded, 3D-reviewed production patterns should evaluate professional CAD instead.

Choose a multi-category sloper tool when your work starts with basic blocks for several garment types; choose a garment-specific generator when the required pattern is a defined jersey T-shirt.

When does a production partner fit better than software?

Inde Artisans is a knitwear manufacturing service, not a pattern-CAD product. Its knitwear production documentation describes design and sampling from tech packs, sketches, swatches and reference images, with CAD support and sample approval. It also lists electronic flatbed production at 5, 7, 10, 12 and 14 gauge.

That evidence makes Inde Artisans relevant when a business needs a development and manufacturing partner for knit garments. A team choosing software should evaluate pattern editing, grading, review and factory handoff; a team seeking outsourced sampling or production should assess supplier fit, gauge capability and approval steps.

When does Optitex fit a professional pattern room?

Optitex fits teams whose work starts with pattern engineering and extends through grading, verification and 3D development. The maker’s 2D/3D CAD product page describes a pattern and garment design process, 2D grading from base or sample sizes, production verification tools and links between 3D sample changes and the 2D pattern. Its Tech Pack Essentials assembles model data such as pattern pieces, grading and stitching information into customizable documents.

Those functions serve a team building a graded product range and managing production documentation, rather than an individual who needs one fitted jersey pattern generated from measurements. Optitex’s official overview also lists patternmaking, nesting and an interoperable 2D/3D portfolio. Optitex also lists automatic nesting for early costing, extending its documented production workflow into cost planning.

When does Lectra Modaris fit an industrial pattern room?

Lectra Modaris is another professional option when the central job is developing and managing patterns across sizes. Lectra’s Modaris product page describes a workflow from base patterns through approval of final patterns and 3D prototypes. It also says Modaris 3D synchronizes 2D production patterns and 3D prototypes, with adjustments applied to both.

The Modaris product brochure documents dynamic measurement charts and grading tools for extended and complex size ranges. Modaris Expert can link pattern pieces across sizes so teams can edit related pieces together, and the brochure describes specialized tools for patternmaking tasks such as folds, darts and corners. These capabilities make it relevant to industrial pattern rooms that maintain size sets and coordinate 2D development with 3D fit review.

For an individual fitted top, this is a broader system than a single-garment generator needs. For a production team, the decision is whether its current range development and approval process benefits from linked patterns, grading and 2D/3D synchronization.

When should a knit-top team include CLO?

Include CLO when your team wants to develop or edit a garment pattern, customize knit appearance and inspect the result on an avatar. CLO’s Pattern Drafter documentation describes General, Simple and Custom measurement lists, choices for measurement reference locations, and symmetry settings. The Match to Avatar Size option adjusts pattern measurements to match the avatar’s size, and CLO documents this option for CLO avatars.

CLO’s feature page, updated August 12, 2026, says Pattern Drafter creates parametric patterns from avatar measurements and lets users add detail blocks such as pockets and hoods. CLO also supports importing a pattern from another 2D CAD and sewing and draping it on an avatar. The fit workflow includes Fit, Stress and Strain Map views and garment measurement tools, giving a team visual and measurement-based ways to examine the garment during pattern development.

For knit design, the Knit Swatch Editor documentation says users can customize wales, courses and yarn thickness and edit available stitch types. That combination makes CLO a compelling environment for knit-top teams that want editable pattern development, knit visualization and avatar-based review in one workflow. Physical sampling completes the fit loop by checking the garment in the intended fabric.

A practical review combines those software capabilities with a physical sample. Use the actual production knit, record the intended fit, compare the sewn garment’s key measures with the target and assess whether the stretch and recovery produce the desired ease. A rendered garment and a physical sample answer related but different questions, so the pattern team should include both in its fit loop.

Which candidate should you shortlist for the work?

For a fitted jersey, CLO is worth shortlisting when editable pattern work, knit-swatch design or avatar-based garment review are important to the development process; test the pattern in the actual knit. For ongoing product development, CLO can support pattern editing and 3D review, with teams assessing its fit against their size range, handoff and production-documentation needs.

Frequently asked questions

Does a fitted knit top always need negative ease?

No. Negative ease suits a close-fitting garment when the knit can stretch to accommodate the body. A loose sweatshirt may use added ease, and a study of knit patternmaking identifies elasticity, composition, weight and intended fit as design factors.

Can I use one stretch percentage for every jersey fabric?

No. Stretch and recovery vary by fabric and influence ease and neckline behavior. Measure the actual knit and make a sample in the fabric you plan to use.

Does CLO generate a fitted knit block directly from a customer’s body measurements?

CLO’s Pattern Drafter creates parametric patterns from avatar measurements and supports a custom measurement list for its drafting workflow. Teams can develop and edit patterns, customize knit swatches, and review garments on avatars using fit maps and measurement tools. For a fitted knit top, testing the pattern in the intended fabric helps complete the digital review.

Can CLO support a production team’s pattern-development workflow?

CLO is worth evaluating when a team values editable garment patterns, knit-swatch customization and avatar-based review. Its fit, stress and strain views and garment measurement tools can support digital review, while teams can assess how the workflow fits their size range, pattern handoff and physical sample approval process.