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Pertex© Shield: A three-layer system
Rubber sponge sole for flexibility
Tufflex™ fabric: 88% Nylon
bluesign® approved fabric
Arc'Teryx Men's Fission SL Jacket Size:L Pertex© Shield: A three-layer systemThe lightest weight, fully waterproof, fully insulated jacket uses waterproof breathable GORE TEX and Arc'teryx exclusive Thermatek insulation. Fission Series: Insulated weatherproof outerwear SL: Superlight. DESCRIPTION KNOWLEDGE GAINED Serious mountain travel requires an insulated piece with exceptional warmth to weight value. The Fission SL is our lightest, fully waterproof, insulated jacket that is outstanding in cold wet weather. THE SKIN YOU'RE