Hi everyone.
I just finished my new ultralight synthetic insulation jacket project!
It's trailproof, highly compressible and weighs only 258g (9.1oz).
As insulation layer I used Apex climashield which is still pretty warm when wet and compresses almost as good as down.
So here's the materials used:
Outside and inside: 37g/m² PTX Quantum
Insulation: 100g/m² APEX Climashield
Hems: Elastic bordering tape
Zipper: Closed end teeth
Cost: ~60$
This was the concept of the pattern:
All three layers were sewn at once to prevent the insulation layer from wobbling around inside.
At the places of maximum stress of the backpack and movement I tried to place seams beside but still prevent chafing.
Therefore I finned the front pieces so they reach around to the back where hip-belt creates pressure.
The front parts reach all the way over the shoulder to the back. So there are no seams where the belts of the backpack are but the stressed area is enframed by seams.
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First all three layers of all pieces are stitched togehter loosely (which makes further work much easier).
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Then I sewed and casted all pieces with an overlock machine.DSC_7787.jpgDSC_7785.jpg
Useing Elastic bordering tape as hems.DSC_7801.jpg
Then you're ready to go!
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Best,
PAUL