Fleece vs Flannel: How the Two Fabrics Actually Differ

Fleece and flannel solve the same problem in opposite ways. Fleece is a knit polyester fabric that traps air for warmth; flannel is a woven cotton fabric brushed for softness. Fleece dries fast and resists shrinking; flannel breathes better and layers well. Below is how they differ, point by point.

What is the difference between fleece and flannel?

The core difference is construction and fiber. Fleece is knit from polyester and brushed into a soft pile. Flannel is woven from cotton and brushed on the surface. That single choice drives how each one feels, warms, breathes and lasts.

• Structure: fleece is a knit pile; flannel is a plain or twill weave.
• Fiber: fleece is polyester; flannel is cotton.
• Weight: fleece is light for its warmth; flannel is a light-to-mid woven cloth.
• Stretch: fleece has slight knit give; flannel has almost none.
• Care: fleece resists shrinking; flannel can shrink in heat.

These figures are EOVEA's own polar fleece and cotton flannel. Other mills spec their fabrics differently, so treat these as our products, not a rule for every fleece or flannel.

Which is warmer, fleece or flannel?

Fleece is warmer for its weight. Its knit pile traps a thick layer of air, which is what actually holds heat. Flannel warms through brushed cotton fibers, so it feels warm but weighs more to reach the same warmth. For still, indoor warmth both perform well; for active or damp use, fleece stays warmer because it keeps insulating when wet.

• Insulation: fleece traps more air per gram, so it warms faster.
• Breathability: flannel lets more heat and moisture escape during wear.
• Wind: neither blocks wind well; both need a shell layer outdoors.

Which is softer, fleece or flannel?

Fleece feels softer and plusher out of the package. Flannel feels soft and dry against the skin, and its cotton surface softens further with each wash rather than pilling.

• Surface feel: fleece is plush pile; flannel is a smooth brushed nap.
• Next to skin: flannel is dry and breathable; fleece is warm and cushioned.
• After washing: flannel softens over time; fleece can lose loft if overheated.

Which one lasts longer?

It depends on care. Flannel, as a woven cotton, resists surface wear but can fray at raw edges. Fleece will not fray, but low-quality fleece can pill. EOVEA's fleece is an anti-pill polyester to limit that. To make either last, wash flannel in cool or warm water and dry on low to limit shrinkage, and wash fleece on cool with low or no heat so the pile keeps its loft.

• Pilling: anti-pill fleece resists it; plain fleece pills faster.
• Fraying: flannel edges fray and want a finished seam; fleece edges do not.
• Wash durability: fleece holds shape; flannel can shrink or fade in high heat.

Which is better for sensitive skin?

Flannel is the safer pick for sensitive skin. It is breathable natural cotton that moves moisture away from the body. Fleece is comfortable too, but polyester breathes less and can feel warm or clingy.

• Fiber: cotton flannel is a natural fiber; fleece is synthetic.
• Breathability: flannel airs out; fleece holds warmth close.
• Moisture: flannel absorbs; fleece wicks but can trap heat.

What are the disadvantages of fleece?

Fleece is warm and easy to sew, but it has trade-offs. It breathes less than woven cotton, it can build static, and cheaper fleece pills. It is also a synthetic, which matters if you prefer natural fibers.

• Breathability: the dense knit can feel warm during activity.
• Pilling: non anti-pill fleece roughens with wear.
• Static: polyester can hold static in dry air.
• Fiber: it is synthetic, not a natural fiber like cotton flannel.

How is polar fleece different from microfleece?

Polar fleece and microfleece are both knit polyester; the difference is weight and pile. Polar fleece is thicker and warmer. Microfleece is thinner and lighter, so it layers under other garments. EOVEA stocks polar fleece, an anti-pill mid-weight.

• Weight: polar fleece is mid-weight; microfleece is light.
• Loft: polar fleece has a thicker pile; microfleece has a low pile.
• Typical use: polar fleece for blankets and jackets; microfleece for base layers.

Which is better for sheets and bedding?

Flannel is the traditional choice for cold-weather sheets. Woven cotton breathes, so it stays warm without overheating. Fleece bedding feels warmer to the touch but traps more heat, which suits very cold rooms.

• Flannel sheets: breathable warmth, softens with washing.
• Fleece bedding: maximum warmth, best for cold rooms.
• Temperature: flannel regulates; fleece insulates.

Which one is right for your project?

Match the fabric to the job. Choose flannel when you want a breathable natural cotton that softens over time. Choose fleece when you want fast, light warmth that will not fray and is easy to sew.

• Choose flannel if: you are sewing shirts, pajamas, quilts or breathable layers.
• Choose fleece if: you want no-fray warmth for throws, jackets or cold-weather wear.

How you cut and sew each fabric differs too. Flannel behaves like any woven cotton: it frays, so finish seams, and it holds a pressed crease. Fleece does not fray, but its knit edges can stretch, so use a walking foot and a slightly longer stitch to keep the feed even.

Both come by the yard or as full rolls at EOVEA: cotton flannel by the yard, flannel rolls, and polar fleece by the yard. Choosing fabric for a blanket specifically? See our blanket fabric guide.

Fleece vs flannel — frequently asked questions

Is fleece or flannel better for winter?

Both work in winter. Fleece traps more air for its weight, so it feels warmer fast and dries quickly. Flannel is breathable brushed cotton, so it stays comfortable during longer wear and layers well.

Does fleece or flannel shrink more?

Flannel is cotton, so it can shrink in a hot wash or dryer, especially before its first wash. Polyester fleece resists shrinking. Wash flannel in cool or warm water and dry low to limit shrinkage.

Can you sew fleece and flannel together?

Yes. A fleece-backed flannel layer is common for blankets and jackets. Use a walking foot, a longer stitch and a ballpoint or stretch needle so the fleece feeds evenly.

Which fabric is easier for beginners to sew?

Flannel is easier for beginners because it is a stable woven fabric that holds a crease and does not curl. Fleece does not fray, but its edges can stretch, so it needs an even feed.

Is flannel or fleece more breathable?

Flannel is more breathable. It is woven cotton, so air and moisture pass through the weave. Fleece is a dense knit that holds warmth in but breathes less, which can feel warm during activity.