Grainline Studio Tamarack Jacket sewing pattern Sizes 0–18 — quilted coat pattern, two quilting motifs

The Grainline Studio Tamarack Jacket pattern (sizes 0–18) is a quilted coat sewing pattern that lets you create a warm, layered spring-to-fall jacket with two included quilting motifs or your own custom design.

This printed paper pattern from Grainline Studio LLC guides you through constructing a roomy, quilted jacket built around an inner cotton or wool batting layer for warmth, welt pockets for secure storage, and design options to personalize the quilting. The pattern finishes in sizes 0–18 and is written for an advanced beginner who knows standard machine-sewing techniques. Fabric and batting are not included; this listing contains the paper pattern only.

What styling and construction options does the Tamarack Jacket pattern include?

The pattern equips you with two ready-made quilting layouts but also encourages creative variations, so you can tailor the look to your wardrobe. Pattern pieces are drafted to produce a relaxed, slightly boxy silhouette suited for layering over sweaters or light knits.

• Two built-in quilting designs plus room to customize stitch patterns.
• Optional fabric choices: lightweight outer wovens, cottons, or technical shells.
• Inner batting: cotton or wool batting recommended for warmth and drape.
• Roomy welt pockets for functionality and clean, tailored finish.

How difficult is this pattern and what sewing skills will I use?

Grainline Studio lists the Tamarack Jacket as suitable for an advanced beginner, so basic garment construction and machine-sewing skills are required. You’ll practice quilting, attaching welt pockets, and assembling layered pieces with batting, which builds practical experience without advanced tailoring steps.

• Standard sewing machine techniques: straight stitching, topstitching, and seam finishing.
• Quilting through multiple layers with walking foot or clamp for even feed.
• Installing and finishing roomy welt pockets cleanly and securely.
• Pressing and edge-finishing to achieve a professional appearance.

What materials and extras do I need to complete the jacket?

This listing is for the printed paper pattern only; you must source your own outer fabric, lining, and batting. Grainline recommends cotton or wool batting for the inner layer; choose fabric weights that balance warmth and flexibility for layering.

• Outer fabric: midweight woven (cotton twill, linen blends, or technical shell).
• Lining fabric: lightweight woven for comfort and ease of movement.
• Batting: cotton or wool batting cut to pattern pieces for insulation.
• Notions: matching thread, welt-pocket interfacing, buttons or snaps if desired.

How will the finished Tamarack jacket fit and where does it work best?

The finished garment is drafted for a relaxed fit that layers easily over light to midweight garments. Its quilted structure adds warmth without bulk, making it ideal for transitional weather in spring and fall or for milder winter climates when paired with heavier underlayers.

• Boxy silhouette with enough ease for sweaters and light layering.
• Welt pockets sized for phone, keys, and warm hands.
• Length and proportions designed for everyday wear and outerwear functionality.
• Customisable quilting lets you dial up casual or refined aesthetics.

Who is this for: The Grainline Studio Tamarack Jacket pattern is aimed at sewists who have moved beyond beginner basics and want a practical outer layer project that teaches quilting and welt-pocket techniques. If you enjoy customizing texture and structure in wearable projects and are ready to source fabrics and batting separately, this pattern gives you a versatile, stylish coat to tailor to your climate and personal taste.