We built the Nano Puff® Jacket for climbers who needed a weather-resistant, lightweight and packable synthetic insulation layer that could stay warm even when wet and withstand seasons of use. Ever since, those same features have made it the uncontested favorite midlayer for just about any outdoor pursuit. With fit refinements for improved mobility, 60-g PrimaLoft® Gold Insulation Eco 100% postconsumer recycled polyester with P.U.R.E.™ (Produced Using Reduced Emissions) technology, and a 100% recycled polyester shell and lining, this iteration of the Nano Puff reinforces why so many people call this the “magic jacket.” Made in a Fair Trade Certified™ factory.
Fit
Fit
Regular fit
What customers are saying
True To Size
Specs & Features
100% Recycled Fabrics
Lightweight 100% recycled polyester ripstop shell has a durable water repellent (DWR) finish made without intentionally added PFAS to shed light moisture.
Incredible Warmth to Weight 100% Recycled Insulation
PrimaLoft® Gold Insulation Eco 100% postconsumer recycled polyester with P.U.R.E.™ (Produced Using Reduced Emissions) technology provides excellent warmth for its weight and stays warm when wet.
Signature Horizontal Quilting
Brick quilting pattern and horizontal quilted side panels with durable, abrasion-resistant thread stabilize insulation for greater durability as an outer layer and low-profile, low-bulk layering under shells.
Evolved Fit for Mobility and Comfort
Improved shoulder fit and elbow articulation for better mobility.
Center-Front Zipper
Center-front zipper has a wicking interior storm flap and a zipper garage at the chin for next-to-skin comfort.
Pocket Features
Two zippered handwarmer pockets have cleanly finished zipper garages; an internal zippered chest pocket doubles as a stuffsack with a reinforced carabiner clip-in loop.
Sealed-In Warmth; Supporting the People Who Made This Product
Drawcord-adjustable drop-tail hem seals in warmth; made in a Fair Trade Certified™ factory, which means the people who made this product earned a premium for their labor.
Country of Origin
Made in Vietnam.
Weight
369 g (13 oz)
Materials & Care Instructions
Shell
1.4-oz 20-denier 100% recycled polyester ripstop with a durable water repellent (DWR) finish made without intentionally added PFAS.
Lining
1.3-oz 100% recycled polyester ripstop with a DWR finish made without intentionally added PFAS.
Insulation
60-g PrimaLoft® Gold Insulation Eco 100% postconsumer recycled polyester with P.U.R.E.™ (Produced Using Reduced Emissions) technology.
Certifications
Fabrics are certified as bluesign® approved.
Factory
Made in a Fair Trade Certified™ factory.
Care Instructions
Machine Wash Warm, Do Not Bleach, Tumble Dry Low, Cool Iron.
Size Guide
Fit Guide
Formfitting
Conforms to the body’s contours.
Slim Fit
Closer-fitting. Slim-fitting technical garments may be worn over baselayers and light midlayers.
Regular Fit
Neither slim nor oversized. Regular-fitting technical garments may be worn over heavier midlayers.
Relaxed Fit
Drapes loosely on the body.
How to Measure
Arm Length
With elbow bent, measure from the center (back) of neck to elbow and down to wrist.
Chest/Bust
Relax your arms, then measure around the fullest part of your chest/bust.
Hip
Stand relaxed with feet shoulder-width apart. Now, measure around the fullest part of your hips and seat.
Size Chart
Alpha Size
Chest
Hip
Arm Length
XXS
33 in. / 84 cm
32 in. / 81 cm
30 in. / 76 cm
XS
35 in. / 89 cm
34 in. / 86 cm
32 in. / 81 cm
S
37 in. / 94 cm
36 in. / 91 cm
33 in. / 84 cm
M
40 in. / 102 cm
39 in. / 99 cm
34 in. / 86 cm
L
44 in. / 112 cm
43 in. / 109 cm
35 in. / 89 cm
XL
47 in. / 119 cm
46 in. / 117 cm
36 in. / 91 cm
XXL
50 in. / 127 cm
49 in. / 124 cm
37 in. / 94 cm
XXXL
56 in. / 142 cm
55 in. / 140 cm
37.5 in. / 95 cm
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