There is no age when you should start wearing thongs. Most girls start wearing thongs in middle school when their pants/dresses are tight and might show their panty lines. Keep in mind that thongs don't mean that you are a gross person or acting "grown up". Thongs can be worn put of necessity, but don't feel pressured to wear one just because others are.
Lingerie also has more than one function. On the practical side, it helps keep everything in place and helps protect your skin from rubbing and chafing. On the other hand, the best lingerie makes you feel confident, sexy and playful. The jury is still out on whether sexy lingerie was invented for males or females. Since its inception, though, it is safe to say that lingerie has evolved. Designers and manufacturers have listened to women and integrated their feedback into their latest designs, making sexy comfortable too.
Performance fibers: Synthetics like polyester and nylon are common in activewear because they wick moisture and dry quickly. For the same reason, these fibers are ideal for underwear, especially if you're working out. Lace underwear and microfiber styles are also usually made from synthetics. Just remember to remove them after sweating; according to Dr. Dweck, "it's important to remove wet exercise clothes as soon as able to avoid infection and irritation in intimate areas."
“My underwear drawer is the most boring place in the world, because all I have are dozens of pairs of the same thing: On Gossamer’s Mesh Bikinis,” says Kim France, the founding editor of Lucky, who counted these as an item she can’t live without. “It is so far and away the perfect underwear that I have a hard time understanding why anybody wears anything else: It’s superlight, highly breathable, and — most importantly — hugely VPL-resistant. Seriously, it’s as VPL-resistant as a thong, but without the annoyingness of a thong,” she says. France isn’t the only one who loves On Gossamer mesh bikinis — they have also been a many-time Strategist best seller.
Thong: Giving you the least amount of coverage, a thong has just a strip of fabric in the back to prevent panty lines from showing through clothes. According to Dr. Dweck, they're totally safe as long as they're not too tight. "The right thong with a cotton crotch and non-chafing 'G-string' that fits well is not a problem for those who prefer them," she advises.