Yes, it's a breathable underwear made from the same material as athletic shirts. It contains some spandex, so it would be tighter than standard briefs/boxers.
Spandex tights are quite simply made of the material spandex. Spandex is an elastic material which is durable and can be stretched which is why it is used for certain sports uniforms in sports that require quick and frequent motions and movements.
No
most usually spandex
You can make your bra tighter by adjusting the straps. You can also put the back strap on the hooks that are the furthest from the end of the strap.
Spandex is a synthetic fiber. There are different types of Spandex fabric. The two most common is Two-way Spandex and Four-way Spandex.
Spandex polymers are composed of three different monomers. Dialcohol monomers make up the rubbery, soft part of the polymer while diamine and diisocyanate monomers make up the rigid, hard part of the polymer. The three monomers of spandex therefore are dialcohol, diamine and diisocyanate.
Yes some spandex is waterpoof
Lycra is a brand name for spandex. Spandex is a synthetic fiber made primarily from a polyurethane polymer. It is a competitor to the natural material latex.
Jeans are made from denim. There are some spandex added to most jeans to make them stretch really well. Spandex is a synthetic fiber known for its exceptional elasticity. So basically, the two main ingredients of jeans are denim and spandex.
No they have no impact on the vaginal muscles.
Spandex is a synthetic fibre.