are timbuk2 bags waterproof Relo 25L Personal Item Backpack — Flight Approved Carry On, Clamshell, Laptop Sleeve, Zippers, Underseat Bag, Fits 15" Laptop, Women & Men, Black : Electronics top pack in weatherproof Material:Soft Letaher EUME Cosmo 16 L HR-CX

are timbuk2 bags waterproof Relo 25L Personal Item Backpack — Flight Approved Carry On, Clamshell, Laptop Sleeve, Zippers, Underseat Bag, Fits 15" Laptop, Women & Men, Black : Electronics top pack in weatherproof Material:Soft Letaher EUME Cosmo 16 L HR-CX

EUME Cosmo 16 L Laptop Backpack

Not everyone has to be waterproof, however, your sleeping pad, sleeping sheet, and clothes should be fully waterproof to the extent that you can submerge your pack in a river and it will all be dry

HR-CX

Material:Soft Letaher

While the outer shell of the backpack is made with nylon, I wouldn’t recommend using it in any inclement weather as it doesn’t have any waterproofing finish to the material

top pack in weatherproof material.