Manufacturer's Description refers to the men's version

Windproof, warm, lightweight and highly compressible, the Nano Puff Vest can be worn as a warm layer in cold conditions or as a wind-protection layer during high output activities.

Features:
* Ultralight ripstop recycled polyester shell fabric treated with a Deluge® DWR (durable water repellent) finish
* Synthetic insulation provides excellent warmth and compressibility
* Stuffs into a zippered, secure internal left chest pocket that has a reinforced carabiner clip-in loop
* Two zippered handwarmer pockets, drawcord hem
* Regular fit

Visit Patagonia's Men's Nano Puff Vest page.

Retailers' Descriptions

Here's what other sites are saying:

The Nano Puff Vest from Patagonia allows you to tackle any adventure with an unbeatable amount of style, while keeping you toasty warm. This vest is crafted out of a super tough polyester fabric that possesses 60 grams of Primaloft Gold Insulation to keep you nice and toasty as you go about your day. The Nano Puff Vest features supreme packing abilities, so only storing one jacket in your pack is a thing of the past. PRODUCT FEATURES: Drawcord-adjustable drop-tail hem seals in warmth 227 g (8 oz) Shell and lining: 1.4-oz 22-denier 100% recycled polyester with a DWR (durable water repellent) finish Insulation: 60-g PrimaLoft Gold Insulation Eco 100% polyester (55% postconsumer recycled content) Fabric is certified as bluesign approved

- Appalachian Outdoors refers to the men's version

Patagonia Men's Nano Puff Vest - The Patagonia Men's Nano Puff Vest is warm, windproof, water-resistant. The Nano Puff Vest uses warm, incredibly lightweight and highly compressible 60-g PrimaLoft Gold Insulation Eco with 55% postconsumer recycled content, wrapped in a 100% recycled polyester shell and lining.

- Outdoorplay refers to the men's version

Warm, windproof, water-resistantG? the updated Patagonia Nano Puff Vest uses warm, incredibly lightweight and highly compressible 60-g PrimaLoft Gold Insulation Eco with 55% post-consumer recycled content, wrapped in a 100% recycled polyester shell and liner.

- Mountain Gear refers to the men's version

Windproof and warm, the Patagonia men's Nano Puff vest sports lightweight and very compressible PrimaLoft Gold Eco insulation for excellent comfort-layered under a shell or worn alone.

- REI refers to the men's version

Specs

men's
Weight 8.6 oz / 244 g
Shell Fabric 1 oz 15-Denier 100% Recycled Polyester, Deluge® DWR Finish
Lining Fabric 1.4 oz 22-Denier 100% Recycled Polyester
Insulation 60-g PrimaLoft® One 100% polyester, Deluge® DWR Finish