The Warm 100 Ultra Clean Natural Cotton with 100% Cotton Scrim is a premium version of The Warm Company’s Warm 100 batting, featuring an all-cotton scrim rather than the standard polyester scrim. For quilters committed to all-natural fiber content throughout their quilts, the cotton scrim version provides a completely natural batting — 100% cotton from fiber to scrim — with no synthetic content whatsoever.
Product Details
- Fiber: 100% natural cotton — premium quality
- Scrim: 100% cotton scrim — no polyester content anywhere in the batting
- Brand: The Warm Company — “Ultra Clean” designation for all-natural fiber content
- Width: Standard batting width for longarm use
Frequently Asked Questions
- Why does the scrim material matter?
- Standard cotton battings use a polyester scrim for stability. For quilters who want absolutely no synthetic fiber content in their quilt — whether for personal preference, allergy considerations, or heirloom integrity — the cotton scrim version ensures 100% natural fiber throughout the batting.
- Does a cotton scrim perform differently than a polyester scrim?
- A cotton scrim is slightly more prone to needle penetration variation compared to polyester scrim but still provides adequate stability for most quilting applications. The maximum recommended stitch spacing may be slightly tighter for cotton scrim battings.
- Is this batting appropriate for organic or natural fiber quilts?
- Yes — the Warm 100 Ultra Clean with cotton scrim is specifically designed for quilters pursuing all-natural, all-cotton quilt construction from fabric through batting.
- Does this batting shrink?
- Yes — approximately 3–5% on first washing, creating the classic cotton crinkle effect.
- How does Warm 100 Ultra Clean compare to standard Warm & Natural?
- Both are high-quality natural cotton battings from The Warm Company. Ultra Clean uses a cotton scrim (vs. polyester scrim in standard products) and may have additional cleaning/processing to reduce debris and seed content.

