NEW · Bestseller 2026

Breathable Warmth for Cold-Weather Runs

New active insulation middle layer for autumn and winter. Primaloft Evolve and Polartec Alpha fabrics deliver more warmth with less weight — ideal for layering under a hardshell or wearing solo on cool-weather runs.

Primaloft Evolve + Polartec Alpha insulation
Lighter, warmer — optimized middle layer
Full-zip, half-zip and reversible styles
Men and women fits, OEM/ODM ready

Fabric & Spec

Style No.LYTH-PL03 / 09 / 14 / 21 / 27 / 33 / 38 / 44 / 51 / 58
CategoryACTIVE INSULATION JK
FabricPrimaloft Evolve / Polartec Alpha
FunctionLightweight warmth, breathable middle layer
UseOutdoor layering / running / autumn-winter
StylesFull-zip, half-zip, reversible jacket
FitMen / Women / Unisex

We reply within 24 hours on working days.

Manufacturing & Customization

Active Insulation Jacket Manufacturing — PrimaLoft & Polartec ODM

As an active insulation jacket manufacturer in Tianjin, China, LYTH builds PrimaLoft Evolve and Polartec Alpha mid-layer programs for EU and US outdoor brands — fabric sourcing, pattern making, sample development, cutting, sewing and AQL 2.5 final inspection, all managed in-house. Active insulation is the fastest-growing layering category for fall and winter running, and we keep both brand-fabric platforms available so your line can spec the right warmth-to-breathability balance.

Customization covers silhouette and detail: full-zip, half-zip or reversible constructions in men's, women's and unisex fits; your Pantone colorways; pocket configurations, elastic cuffs and hem drawcords; plus private label branding — woven labels, hangtags and retail packaging. Counter-samples are developed directly from your tech pack, and bulk production is verified against a sealed pre-production sample hung on every line.

Final inspection follows AQL 2.5 / General Inspection Level II — the same norm most EU and US buyers reference in their purchase contracts — with a sealed ship sample retained for three years. MOQ is 400 pcs per color, and production ships FOB Tianjin, CIF, or DDP to EU and US warehouses.

400pcs MOQ per color
7–10day counter-sampling
35–55day bulk production
10ready styles to customize
FAQ

Active Insulation Jacket FAQ

PrimaLoft or Polartec Alpha — which insulation should I spec?

PrimaLoft Evolve delivers the best warmth-to-weight ratio for everyday layering; Polartec Alpha is more air-permeable, keeping high-output activities like running and ski touring thermoregulated. We help you match the insulation to your end use.

Are active insulation jackets warm when wet?

Yes. Both PrimaLoft Evolve and Polartec Alpha are synthetic insulations that retain warmth when wet and dry fast — unlike down, which loses loft when damp. This makes them reliable mid-layers for humid fall and winter conditions.

Which styles can be customized?

Full-zip, half-zip and reversible silhouettes in men's, women's and unisex fits, with your Pantone colorways, pocket configurations, and private label branding — woven labels, hangtags and retail packaging.

What is the MOQ for active insulation jackets?

400 pcs per color. Counter-samples take 7–10 days; bulk production runs 35–55 days depending on season and style complexity.