The seat and underwear that rolls up
Short answer: Underwear that rolls up or creeps in is usually down to the wrong size, elastic that is too narrow or a fabric that does not grip the skin. Try a different fit, check the leg edge and choose fabrics that lie flat.
Why underwear rolls up
The edge of underwear sits where the body bends and where the skin rubs against the fabric with every step. If the edge is too narrow, too tight or has too little grip, it rolls up and gathers into a thick line that is both seen and felt. It can also happen if the size is too small and the fabric is stretched too much. So there are several causes, and most can be solved by changing the fit and the fabric.
Size and cut
Try one size up if the edge rolls. A size that is too small pulls the fabric in towards the body and makes the edge curl. Try different cuts too, because the shape of your body decides which cut sits best. See bamboo leggings for women, where the same principles of fit and edge apply. A model with a wide, flat edge often sits more calmly than one with narrow elastic that cuts in.
The edge and the elastic
A wide, soft edge spreads the pressure and rolls less than a narrow, hard one. Check that the elastic is covered with fabric and has no sharp edges. Elastic that is too tight squeezes the skin and makes the edge tip. Elastic that is too loose loses its grip and slides. A good edge sits snugly without pressing, and it holds up when you move and sit down.
The top and the clothes over it
The clothes on top can pull at the underwear. If a T-shirt or blouse is too short, it pushes itself up and can take the underwear with it. See bamboo T-shirt for women. Choose a top long enough to lie flat, without tight seams at the hip. See also bamboo tops for women, where the length of the top can vary, so you can choose the one that suits your trousers.
Fabric and surface
A smooth fabric slides against other layers, and a fabric with some grip stays put. It can be a balance, because a fabric that is too smooth can curl, while one that is too rough can rub. Viscose from bamboo is soft and smooth and lies calmly against the skin. Choose a fabric with some elasticity so it follows the body, and which does not become heavy and sticky when it is warm. An edge sewn with flat seams rubs less than one with thick seams.
Care so the edge keeps its shape
Elastic wears with hot washing and heavy drying. Wash at 30 to 40 degrees and avoid fabric softener, which can make the edge less elastic and the fabric less breathable. Use a laundry bag and hang the garments up to dry. When the elastic loses strength, it is time to replace the underwear, as a slack edge rolls more. If you have lasting irritation or redness of the skin, talk to your doctor, as it may have other causes than your clothing.
Frequently asked questions
Why does my underwear roll up
The edge may be too narrow, too tight or have too little grip. A different size and a wider, softer edge often help.
Should I choose a larger size
Often yes, if the underwear is tight and the edge curls. Check that it does not become too big elsewhere.
Can the top make underwear roll up
Yes. A short top can pull at the underwear. Choose a length that lies flat and does not pull.
See our range of Boody underwear.
