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1.

ultralight ultracozy

2.

weight is ~ 325g for size 4

3.

Shalom is 5’8” / 172.7 cm and wears size 2

4.

view from the back

5.

exceptional warmth-to-weight

6.

Evan is 6’4” / 193 cm and wears size 5

7.

wind-blocking 7D ripstop

8.

elastic cuffs with thumb loops

9.

camp-ready static insulation

10.

removable hem adjuster

11.

holds loft after washing

12.

made in Japan

13.

next-gen Toray insulation

14.

secure hand rest pockets

15.

color frozen dew 13-0513

16.

size chart

HEATWAVE PUFFER JACKET

1.

ultralight ultracozy

2.

weight is ~ 325g for size 4

3.

Shalom is 5’8” / 172.7 cm and wears size 2

4.

view from the back

5.

exceptional warmth-to-weight

6.

Evan is 6’4” / 193 cm and wears size 5

7.

wind-blocking 7D ripstop

8.

elastic cuffs with thumb loops

9.

camp-ready static insulation

10.

removable hem adjuster

11.

holds loft after washing

12.

made in Japan

13.

next-gen Toray insulation

14.

secure hand rest pockets

15.

color frozen dew 13-0513

16.

size chart

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HEATWAVE PUFFER JACKET GN-S-017
Ultralight. Ultracozy. The Heatwave Puffer Jacket.

Built to keep you warm without weighing you down, this jacket punches way above its weight with an exceptional warmth-to-weight ratio. It’s super lightweight, packs down small, and works just as well in your kit as it does in your everyday wardrobe.
Intentionally simple and streamlined, there’s less that can fail—and no baffles means fewer cold spots, delivering consistent warmth throughout. The insulation is a next-gen synthetic sheet from Toray, engineered with mechanical crimping to hold its loft and shape, even after repeated use and washing.
Details include elastic cuffs with thumb loops to lock in heat, and a removable hem adjuster for dialing in fit—or shaving off grams when needed.
Whether you’re layering up for camp or boosting your sleep system, the Heatwave is a go-to piece of static insulation that’s light, warm, and always ready.
fabric
The Heatwave Puffer Jacket is crafted from an ultralight nylon ripstop by Toray, using 7-denier yarn to create an incredibly fine, compact weave that effectively blocks wind and retains warmth. The insulation is a groundbreaking synthetic sheet from Toray, featuring mechanical crimping that maintains loft and durability, even after repeated packing and washing. This innovative combination of materials is what gives the Heatwave its name and its exceptional performance in the outdoors.
specs
  • Supplier: Toray
  • Origin: Japan
  • Composition: 100% Nylon
  • Weight: 20 g/m2
  • Properties: Water Repellent Shell / Compactable Insulation