Verified Open Pattern (1.0.0-published)

This pattern includes verified home printable specification files, dual-unit sizing charts, and full cutting guides. Upstream source: FreeSewing (MIT / CC BY 4.0).

Athletic A-Shirt Beginner XS – 3XL

Aaron Athletic A-Shirt

Aaron Athletic A-Shirt. Sourced directly from verified open distributions with authentic rights. Includes complete size tables, ease notes, and illustrated construction steps.

Jump to Downloads Front & Back Views Size & Measurements Fabric & Tools Step-by-Step Instructions

Technical Garment Schematics

Front and back flats illustrating seam lines, hem curves, and design details.

Front Elevation

Back Elevation

Sizing & Measurement Tables

Review both body benchmarks and finished garment ease before cutting your cloth.

Measurement Unit

Toggle between metric and imperial values across all charts

1. Body Measurements Chart

Your physical body dimensions. Measure over undergarments with a snug tape.

Swipe sizes

Size	Bust	Waist	Hip
XS	80 cm	62 cm	88 cm
S	86 cm	68 cm	94 cm
M	92 cm	74 cm	100 cm
L	98 cm	80 cm	106 cm
XL	108 cm	90 cm	116 cm
2XL	118 cm	100 cm	126 cm
3XL	128 cm	110 cm	136 cm

2. Finished Garment Measurements Chart

Dimensions of the sewn garment, including designed wearing ease.

Swipe sizes

Size	Finished Bust	Finished Length	Bottom Hem
XS	88 cm	68 cm	90 cm
S	94 cm	70 cm	96 cm
M	100 cm	72 cm	102 cm
L	106 cm	74 cm	108 cm
XL	116 cm	76 cm	118 cm
2XL	126 cm	78 cm	128 cm
3XL	136 cm	80 cm	138 cm

Size Selection Guidance

Select size based on full bust/chest measurement.

Wearing Ease Explanation

+4 to +8 cm positive wearing ease for comfortable drape.

Fabric & Materials

Recommended substrates, stretch allowances, yardage requirements, and required notions.

Recommended Fabrics

Lightweight to medium-weight stretch knit (jersey, rib knit, or athletic blend)

Cotton jersey with 20–30% stretch
Rib knit or modal blend with elastane/spandex
Athletic moisture-wicking stretch knit

Stretch Requirement: 20–30% crosswise stretch with good recovery

Notions & Sewing Tools

Ensure you have these ready before starting.

Notions:

Matching all-purpose polyester sewing thread
Ballpoint or stretch needle (size 75/11 or 80/12)

Tools Required:

Sewing machine
Fabric shears
Pins or fabric clips
Steam iron and ironing board

Fabric Yardage Requirements

Size Bracket	115 cm (45") Width	150 cm (60") Width
XS – M	0.9 m (1 yd)	0.8 m (0.85 yd)
L – XL	1.1 m (1.2 yd)	0.9 m (1 yd)
2XL – 3XL	1.3 m (1.4 yd)	1.1 m (1.2 yd)

Seam Allowances & Cutting Layout

Exact seam allowances included in pattern lines, piece list, and cutting discipline.

Standard Seams

10 mm (3/8 in) included on all seams.

Hem Allowance

15 mm (5/8 in) double-fold hem.

Neck & Armhole

6 mm (1/4 in) for neckband or binding attachment.

Pattern Pieces to Cut

Piece Name	Quantity & Orientation	Grainline / Cutting Notes
Front Body	Cut 1 on Fold	Ensure grainline parallel to fold
Back Body	Cut 1 on Fold	Transfer neck balance notch
Neckline Binding Strip	Cut 1 on true 45° bias	Width: 35 mm, stretch slightly while sewing
Armhole Binding Strips	Cut 2 on true 45° bias	Clean-finish underarm binding

Fabric Cutting Checklist:

Press fabric before cutting to remove packing folds and pre-shrink fibers.
Align piece grainlines strictly parallel to fabric selvages.
Transfer notch markings with small 3 mm snips into the seam allowance margin.

Printable Pattern Files

Download PDF files for home printing on standard desktop printers.

Download Pattern Files

1.0.0

Direct pattern downloads. No registration, email capture, or paywalls required.

Updated: 2026-03-09

Instructions Available

Complete offline sewing guidebook with dual calibration test squares, yardage charts, pattern piece cut list, numbered steps, and troubleshooting.

14.8 KB • 4 pages

Download (14.8 KB)

A4 Available

Full-scale 1:1 tiled master pattern for A4 paper (18 sheets). Includes dual 50mm/2.0in calibration boxes, assembly map, grainlines, and corner registration crosshairs.

122.5 KB • 18 pages

Download (122.5 KB)

US Letter Available

Full-scale 1:1 tiled master pattern for US Letter paper (19 sheets). Includes dual 50mm/2.0in calibration boxes, assembly map, grainlines, and corner registration crosshairs.

129.5 KB • 19 pages

Download (129.5 KB)

Printer Calibration Test Sheet (Free Single Sheet) 2.4 KB

Print at 100% scale (no fit-to-page) and measure the 50mm and 2-inch test boxes with a hard ruler.

Download Test Sheet

Print Instructions:

Open the downloaded PDF in Adobe Acrobat Reader or a dedicated desktop PDF viewer. In the print dialog, select "Actual Size" or "Custom Scale: 100%". Never select "Fit to Printable Area". Always measure the calibration square on Page 1 before proceeding.

These files are prepared from documented pattern references through a technical drafting workflow. If anything appears incorrect, unclear, or causes a sewing problem, email feedbacksewingpattern@gmail.com. Send pattern feedback.

100% Scale Verification

Print Page 1 at 100% scale without page scaling. Check Metric box (50 mm x 50 mm) or Imperial box (2.0 in x 2.0 in = 50.8 mm) with a rigid ruler.

Read full printing & calibration guide →

Tile Assembly Instructions

Align numbered registration marks and butt tile edges flush without overlapping untrimmed paper. Tape securely.

Step-by-Step Sewing Instructions

Draft construction notes. Readable online; review against the pattern pieces before sewing.

Join the Tank Shoulder Seams

Place the Front Body and Back Body right sides together, match the shoulder edges, and stitch with a stretch-compatible stitch. Finish the allowances together and press them toward the back.

Bind the Athletic Neckline

Join the short ends of the Neckline Binding Strip to form a loop. Quarter-mark the loop and neckline, place the binding against the right side, and stitch while stretching the binding evenly without stretching the body. Wrap the binding over the seam allowance to the wrong side and topstitch.

Close the Tank Side Seams

Place front and back right sides together and match the underarm and hem edges. Stitch each side seam with a stretch-compatible stitch, finish the allowances together, and press them toward the back.

Bind Both Armholes

Join each Armhole Binding Strip into a loop. Quarter-mark each loop and armhole, match raw edges with right sides together, and stitch with even tension. Turn the binding to the wrong side and topstitch, keeping both armholes symmetrical.

Hem the Athletic A-Shirt

Try on the tank and confirm the finished length. Turn the printed body hem allowance to the wrong side, press without stretching, and topstitch with a coverstitch or narrow zig-zag. Give the neckline, armholes, and hem a final steam press.