Pants-fitting techniques from a pro

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Learn to fit and sew exceptional pants and jeans through this on-demand course featuring pattern designer and fitting expert Jennifer Stern-Hasemann.

Jen shares her comprehensive fitting process in this in-depth course. First, discover how to use body measurements as a guide for adjusting patterns to reflect your shape. Then, see Jen diagnose common pants-fitting problems in muslin test garments on three women of varying sizes. Next, discover the precise pattern adjustments to resolve specific fitting concerns. Once you have a good fit, move on to Jen’s helpful construction tips and techniques for sewing pants and jeans with a professional finish.

You’ll learn and apply these master class techniques at your own pace to make knit or woven styles. Start fitting and sewing pants and jeans with skills learned from Jennifer Stern-Hasemann. 

Pants Master Class will teach you how to:
  • Measure accurately and choose the correct pattern size

  • Customize patterns with body-specific adjustments

  • “Read” the wrinkles in muslin test garments

  • Transfer muslin-fitting fixes to a pattern

Follow the fitting process:
  • Learn how and why to start with a muslin or mock-up pants

  • See how to evaluate a muslin and identify fitting issues

  • Move from a single-leg muslin to a
    two-leg muslin

  • Watch the fitting process on real women of different sizes and shapes

Identify and solve a variety of fitting issues, including:
  • Correct the waistline level

  • Remove excess length on the back leg

  • Fix the crotch “scoop” to match your shape

  • Create more thigh room

Discover construction advice:
  • Different styles are covered—trousers, knit pants, and jeans
  • Sewing tips you won’t find on most commercial patterns
  • Cut-on or separate flies for jeans or trousers
  • Topstitching tips for designer-look jeans

Meet the Instructor

Jennifer Stern-Hasemann is the owner and designer of
J Stern Designs, a line of fashion sewing patterns and fitting workbooks featuring easy-to-follow instructions, and the author of many Threads articles. She has an extensive background in pattern drafting, garment fitting, and clothing construction. Jen is passionate about designing pants and jeans, and her specialty is fitting. After trying many methods, Jen fine-tuned a process to make pants fitting accessible to everybody. She also shares tips, techniques, and projects on her YouTube channel, via Zoom classes, and through in-person workshops nationwide. 

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