1. Introduction
This instruction manual provides essential information for using the Simplicity S9861 sewing pattern. This pattern allows you to create a comfortable two-piece knit loungewear set, suitable for children, teens, and adults. The set includes a long-sleeve t-shirt and pull-on pants with an elastic waistband and banded cuffs.
2. What's Included
Your Simplicity S9861 sewing pattern packet contains the following components:
- Sewing templates
- Fabric recommendations
- Pattern pieces
- Detailed sewing instructions
- Information on how to select fabric and trims
- Sizing information
The front of the pattern packet displays the finished garments:

Image: Front cover of the Simplicity S9861 sewing pattern packet, showing a family wearing the completed loungewear sets.
3. Preparation
Before beginning your sewing project, ensure you have all necessary materials and tools. This typically includes your chosen fabric, matching thread, scissors, pins, a sewing machine, and an iron. Always pre-wash and dry your fabric according to its care instructions to prevent shrinkage after the garment is made. Carefully read through all instructions provided in the pattern packet before cutting any fabric.
4. Sizing Information
Accurate sizing is crucial for a well-fitting garment. Refer to the body measurement charts provided on the pattern packet to determine the correct pattern size for children, teens, and adults. The pattern is designed to fit children's and teen's sizes XS-L and adult sizes XS-XL.

Image: Back of the Simplicity S9861 pattern packet, detailing body measurement charts for children/teens and adults, along with fabric recommendations and notions required.
Suggested Fabrics: This pattern is designed for knit fabrics. Refer to the pattern packet for specific recommendations, such as Stretch Knits only, like Cotton Jersey Knit.
Notions: The pattern requires 1" (2.5cm) elastic for the waistband. Specific yardage requirements for fabric and elastic are listed on the pattern packet based on size.
5. Pattern Pieces Overview
The pattern includes pieces for a long-sleeve t-shirt (View A) and pull-on pants (View B). Each piece is clearly marked for front and back, and includes necessary markings for assembly.

Image: Line drawings illustrating the front and back views of the t-shirt (A) and pants (B) pattern pieces for both children/teens and adults.
6. Operating (Using the Pattern)
- Select Your Size: Based on your body measurements, choose the appropriate pattern size. If your measurements fall between sizes, consider making a muslin (test garment) to ensure fit.
- Prepare Pattern Pieces: Carefully cut out the required pattern pieces from the tissue paper. If necessary, adjust pattern length or width before cutting.
- Lay Out Fabric: Follow the cutting layout diagrams provided in the pattern instructions. Pin pattern pieces to your fabric, ensuring grainlines are correctly aligned.
- Cut Fabric: Cut out all fabric pieces accurately. Transfer all pattern markings (notches, dots, etc.) to your fabric.
- Sewing: Follow the step-by-step sewing instructions provided in the pattern packet. Pay close attention to seam allowances and specific techniques for knit fabrics, such as using a stretch stitch or serger.
- Finishing: Complete all finishing steps, including hemming, attaching elastic, and pressing seams.
7. Maintenance
To ensure the longevity of your Simplicity sewing pattern, store it flat in its original envelope or a protective sleeve. Avoid folding or creasing the tissue paper excessively. Keep the pattern away from moisture and direct sunlight to prevent damage or discoloration.
8. Troubleshooting
- Garment too tight/loose: Double-check your body measurements against the sizing chart. Consider making a muslin for future projects to fine-tune fit.
- Fabric stretching/waving: Ensure you are using the correct needle for knit fabrics (ballpoint or stretch needle) and a walking foot if available. Avoid pulling the fabric while sewing.
- Seams puckering: Adjust your sewing machine's tension and stitch length. Ensure you are using an appropriate stitch for knit fabrics.
- Difficulty understanding instructions: Refer to online sewing tutorials or resources for visual guidance on specific techniques. Many sewing communities offer assistance.
9. Specifications
| Feature | Detail |
|---|---|
| Brand | Simplicity |
| Model Number | S9861 |
| Sizes Included | Children's/Teens' XS-L, Adults' XS-XL |
| Material | Paper |
| Media Type | Physical Pattern |
| Recommended Use | Sewing |
| UPC | 039363598619 |
| Product Dimensions | 0.36 x 6 x 8.5 inches |
| Item Weight | 3.17 ounces |
| Language | English |
| Manufacturer | DG Americas |
10. Support and Contact
For additional assistance, questions regarding the pattern, or to provide feedback, please visit the official Simplicity website or contact their customer support. You can often find helpful resources, FAQs, and community forums on their website.
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