Looking for Answers about MEC MEC Silk Bag Liner Rectangular?

Only the same as any other thin fabric. if it is held away from your skin then yes, but if it is lying directly on your skin and the mosquito can bite you through it, then no.

no it will not , once you have critters in your sleeping bag wash, wash and wash your bag with the proper soap and follow all directions or just get ride of the bag and look all over the house for these critters you brought into the house or your vehicle and your other clothes go the dept of health web site for all info about bed bugs .

Not really, as these liners do not open all the way. The spot where the top sheet is folded back in the picture? that's as far as it opens, the rest of that side is sewn. There is also no left/right opening option, so the longer underside would flop over someones face if you tried to flip it over to attach it to a second one.

Silk is a very delicate fabric and your silk sleeping bag liners can be easily damaged by washing with harsh detergents or harsh wash cycles. Please be gentle. You can machine wash it, but please do them separately so they don't snag on other clothes. Use a mild detergent and NO bleach, on the most delicate setting. You may hand wash with mild soap - dishwashing liquid, shampoo or a bar of soap is fine. Lay flat or hang to dry - dries fast. Do not tumble dry.

The silk liner is designed more for cleanliness and keeping bugs out than adding extra warmth.

If you are looking for a liner that will provide an additional layer for warmth I would look at the MEC Fleece Sleeping Bag Liner in either the barrel or mummy shape depending on your sleeping bag.

Technically, you can use any shape of liner in any shape of sleeping bag.

The advantage of a rectangular liner is that you'll have more space to move around in when you use it with the barrel bag. You can also use the liner on its own in hot conditions or in some hostels. The disadvantage is that you'll have a lot of extra material twisted around your feet when you use it with the mummy bag. If you feel at all claustrophobic in a mummy bag to begin with, you may feel more so when you can't easily move your feet around.

The advantage of a mummy liner is that it will keep you warmer because there's less of it to warm up. It will fit nicely in both your barrel and mummy bags. The disadvantage is that you'll have less room to move around than in the rectangular liner.