Are these warm enough for canadian winters when its -40 degrees celcius outside? I love the slime!!

Tech Specs:

Material:

[shell] Infidry-15 (100% polyester peached oxford); [lining] nylon taffeta, polyester peached tricot, polyester mesh, nylon cordura 

Fabric Waterproof Rating:

15000 mm 

Fabric Breathability Rating:

10000 g/m² 

Insulation:

[liner] 100% polyester brushed tricot microfleece 

Venting:

inseam vents 

Side Zips:

no 

Seams:

fully taped 

Waist:

belt loops, hooke and loop side tabs 

Pockets:

[shell] 2 front, 2 cargo, 1 thigh, 1 belt stash, 1 hidden ID; [liner] 2 front 

RECCO:

no 

Recommended Use:

snowboarding 

Manufacturer Warranty:

1 year