What is the liner made of? Is it a knit, fleece, or nylon? I don't like the thin nylon material on the inside of jackets. Thanks!

Tech Specs:

Material:

[Shell] HyVent 2L 

Insulation:

[Zip-in liner] 100g Heatseeker 

Waterproof Rating:

[Shell] 25psi 

Breathable Rating:

[Shell] 625-675g / m2 

Core Venting:

[Shell] None 

Pockets:

[Shell] 2 front, 1 chest, 1 interior; [Liner] 2 front 

Seam Taped:

[Shell] yes, taped critical seams 

Powder Skirt:

No 

Hood:

Yes 

Zip-in Compatibility:

Yes, removable liner included 

Recommended Use:

Snow sports, winter exploration 

Manufacturer Warranty:

Lifetime