OopBuy Jackets: Outerwear Construction and Warmth Tiers

Jackets on OopBuy spreadsheets span four main categories: puffers and down jackets, wool and cashmere coats, technical windbreakers, and denim or canvas overshirts. Each category uses different material benchmarks and carries different QC priorities. Puffers are judged on fill power and baffle construction. Wool coats are judged on fabric weight and lining quality.

For down-style puffers, the spreadsheet may note a fill-power equivalent. 600-fill is warm enough for autumn and mild winter. 800-fill handles freezing temperatures comfortably. Synthetic fills are labeled by weight in grams — 150g is light, 250g is mid, 350g+ is heavy winter territory. QC photos should show even baffle distribution without flat spots.

Zippers are a major QC point on jackets. YKK-branded zippers are the benchmark. Check that zipper pulls have the correct branding and smooth travel. Snap buttons should seat firmly without wobble. Velcro patches on technical jackets should have clean hook-and-loop density.

Jackets on OopBuy often run slim in the shoulders. If you plan to layer over a hoodie, size up once. Puffers have more forgiveness because the fill compresses. Wool coats look best with a structured fit — do not size up more than once unless you want a deliberately oversized silhouette.