An undergarment includes at least one panel of stretchable loop material. The panel of stretchable loop material is connected to a main body of the undergarment such that it can stretch around one side of wearer's waist or hip. The stretchable loop material is configured such that it can releasably connect to a plurality of engaging elements. The engaging elements can be hooks of a hook-and-loop fastening system. The undergarment is configured such that it can be easily concealed beneath clothing and can be easily positioned and removed by a wearer. A method of disposing an undergarment includes rolling or folding the main body of the undergarment and tying panels of stretchable loop material around the rolled or folded portion to encase the rolled or folded portion between the panels of stretchable loop material.

A lower-body garment comprises a left leg portion, a right leg portion and an intermediate portion connecting the left leg portion to the right leg portion. The intermediate portion has a groin covering portion adapted to extend over a groin area of a wearer. The groin covering portion has a 3D textile. The 3D textile has at least one opening. In use, the opening of the 3D textile is stretched and compressed by a walking movement of the wearer thereby creating air movement.

An underwear includes a first coverage portion, a second coverage portion, and a crotch panel extending between the first coverage portion and the second coverage portion and adapted to be arranged between of a wearer, covering a crotch area of the wearer. The underwear also includes a pair of tabs extending outwardly of the first coverage portion and configured to removably couple the first coverage portion and the second coverage portion.

A lower-body garment comprises a left leg portion, a right leg portion, an intermediate portion connecting the left leg portion to the right leg portion and two separators. The intermediate portion has a middle portion and a groin covering portion adapted to extend over a groin area of a wearer. The middle portion connects the left groin portion to the right groin portion. Each one of the two separators extends from a respective one of the left groin portion and the right groin portion of the groin covering portion so as to reach between a scrotum and the respective left leg and right leg of the wearer. Each one of the two separators has a 3D textile with an opening. In use, the opening of the 3D textile is stretched and compressed by a walking movement of the wearer, thereby creating air movement.