This particular hairstyle survives being wet for weeks (rain or sweating buckets), PT, jungles, snow&freezing/thawing, wearing to bed (a do rag will keep it pristine, but it's not necessary, wet hands will slick it into glossed perfection in one swipe), can be showered in / or swum in / full immersion (just add a bit more gel when you get out & boar bristle brush the head-part to reset), and can be worn under a hat that you take off 4 million times a day. (Just put the hat on and take it off front to back.) It also only takes about 90 seconds -at most- to accomplish brand new.
Wash your hair, slick back with massive amount of gel (about 1/4-1/3 cup for collarbone length, for real, massive amount of gel) into a double braided bun if long hair, or nylon bun if short.
- Double braid = low ponytail. Split in half. Braid each half & band the ends. Wrap one one way, one the other, & pin in place.
- Nylon = Cut the legs off a pair of nylons, then cut the foot off, roll each into a donut, save one for later, or both into one double thickness donut. 2 hair-ties. 1= Low pony-tail. Nylon donut over. Comb half the ponytail up, the other half down. 2 = secure halves in place.
- Double bun = same as double braid without the braiding. Pony tail. Split in half. Twist each half & band. Pin in place.
Double Braid Bun.... Nylon Bun...Double Bun... OohRah :P