Fleece isn't about softness. It's about trapped air

What people assume, and what's actually doing the work

Fleece gets sold on how it feels: soft, plush, comfortable against skin. That's real, but it's not what keeps anyone warm. The insulation comes from tiny pockets of air trapped between brushed fibres, held close enough to the body to slow heat loss. Take the same fibre and knit it flat instead of brushing up a pile, and the warmth mostly disappears even though the material is identical. Softness is a side effect. Trapped air is the actual job.

How the fabric actually gets that texture

Polyester fibres are knitted into a base fabric first, then brushed mechanically on one or both sides to raise the surface into the pile that does the insulating. Weight, measured in grams per square metre, decides how much of that pile there is and how warm the result feels: a 100gsm fleece is light enough to stuff in a bag, a 300gsm version is a different garment entirely, heavier and noticeably warmer. Specify the gsm rather than just asking for "fleece," or a supplier picks the middle ground that suits neither a packable layer nor a genuine winter jacket.

Where it earns its place in a merchandise programme

Jackets, pullovers, and vests are where fleece shows up most, usually for corporate gifting, team outfitting, or a seasonal programme built around it. It's a practical choice people actually wear, which counts for more than it gets credit for in a sourcing conversation focused on how something photographs. A well-made fleece jacket tends to stay in someone's rotation for years, which means the logo on it keeps working long after the handoff moment everyone remembers to plan for.

What's worth being honest about

Most fleece sheds microplastics in the wash, a real problem that recycling the input material doesn't resolve. Conventional polyester fleece also starts as newly extracted fossil fuel, the same origin story as any virgin synthetic. Neither point is a reason to avoid the fabric for a brand whose whole positioning rests on sustainability, but both are worth saying plainly before the order goes in, not after a client asks why their fleece line doesn't fully match their messaging.

Recycled fleece, and why it's stopped being the exception

Recycled polyester fleece, made from plastic bottles or reclaimed textile waste, performs close enough to virgin fleece that there's rarely a functional reason to default to the conventional version anymore. An outdoor brand helped take fleece mainstream in the late 1970s; recycled fleece has had a similar effect more recently, moving from a specific request to something closer to the standard starting point, verified with a GRS certificate rather than taken on trust.

The corner of the business this is

Brushed pile, grams per square metre, an air gap doing the real work, recycled input as the default. That's our corner of the material side of the business. And the question underneath it: is the jacket actually keeping someone warm, or just looking like the kind of thing that would.