Story
A lightweight down-alternative jacket with technical flair
Our PROOF design knows that when it comes to perfecting an insulated jacket—it’s the inside that counts. The team opted for 40 grams of water-resistant PrimaLoft to help keep the jacket as breathable as possible without sacrificing warmth. (By the way, PrimaLoft was actually first developed for use by the US Army in the early 1980s, and the insulation worked so well that outdoor brands poached the technology for themselves.) The shell of the jacket is treated with a durable water repellent (DWR), and blended with a touch of spandex to help keep its shape and allow gentle flex. Combine all these technical elements with the fact you’ve got a pack-friendly design (it can roll up for storage in a daypack), streamlined zip pockets, and a soft quilted liner, and you’ve got a damn good full zip primed for impromptu, one-bag-travel trips.
Feature
- Hem cord lock system and elastic binding at cuffs to keep in warmth
- Interior media pocket on wearer’s right side
- Front left chest hidden zipper pocket
- 2 front side entry pockets at the waist with zipper closures
- Durable water repellent exterior (DWR coating)
- Cord zipper pulls with silicone dipped puller ends
- Quilted Interior
- Standing collar
- YKK zippers
- Hanging locker loop
Sizing
- The AltoLoft Insulated Full Zip Jacket has a regular fit that’s true to size, take your normal size
- For the absolute best personal fit, compare your best-fitting jacket to the garment measurements below
Garment Measurements
|
XS |
S |
M |
L |
XL |
XXL |
| Chest |
41 |
43 |
45 |
47½ |
50 |
57½ |
| Shoulder |
18 |
18½ |
19 |
19⅝ |
20¼ |
21⅛ |
| Body Length |
27¾ |
28¼ |
29 |
29¾ |
30¼ |
31 |
| Sleeve Length |
34 |
34¾ |
35½ |
36¼ |
37 |
37¾ |
All measurements are in inches.
How to Measure
- Chest: Measure straight across from edge to edge, starting 1" below the armhole, multiply by 2
- Shoulder: Measure straight across from shoulder seam to shoulder seam. Again, it’s easiest to measure across the back of the garment
- Body Length: Start at the top of the shoulder where it meets the neck seam, and measure straight down to the hem
- Sleeve Length: Start at the center of the back of the neck, measure straight across to the shoulder seam, and then follow the edge of the garment to the cuff. Pro tip: it’s easiest to measure across the back of the sleeve
Materials & Care
- Body: 94% Nylon, 6% Spandex, 118 GSM
- Lining: 88% Nylon, 12% Spandex, 95 GSM
- Sleeves: 100% Recycled Polyester
- Insulation: 40g PrimaLoft
- Machine wash cold on delicate cycle with similar colors; do not bleach; hang to dry; iron low heat
About PROOF
Sprint and catch that train. Bike to your next meeting. Stretch out on that international flight. Thanks to innovative technical fabrics and thoughtful design, PROOF's clothing is smart, technical apparel rises to every occasion. Designed for work, play, and travel, PROOF updates everyday essentials with the latest performance fabrics and construction techniques to help you get more out of your clothing — so you can get more out of yourself.
The Sweat Test Guarantee
Put your new Proof gear through its paces. If it does not meet your expectations, we'll accept your dirty laundry and issue a refund, no questions asked.
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