Sperm can easily pass through thin, breathable fabrics like cotton or microfiber. However, tighter-fitting materials like spandex or nylon can create more friction and may be less conducive to sperm movement. It's also important to note that the type of underwear worn can impact temperature regulation, which can affect sperm health. Overall, looser-fitting styles like boxers are generally more favorable for sperm viability.
Normal underwear.
super man kind!
A thong
One can purchase underwear at any clothing retailer. One can purchase underwear at their nearest clothing retailer in the underwear section of the store.
plastic or absorbent underwear
In men's underwear, generally, there is some kind of fabric, a comfortable waistband and a Pocket for my package.
Boxers
briefs
breifs
none
He wears boxers
Boxers.