What size am I in boxer shorts?
This or similar questions are frequently searched for. However, the answer is more complicated than it seems at first glance.
Firstly, it must be stated that nowadays the term boxer shorts is often used synonymously for any men's underwear that has legs. However, usually people mean so-called boxer briefs (tight-fitting cut with short, tight-fitting legs), and not boxer shorts (loose-fitting cut with wide legs). Our article focuses on the tight-fitting boxer briefs.
The normal size
We keep hearing or reading phrases like "L fits me," or "I'm an M in every brand," "your shorts run very large/small." While this may coincidentally be true for individuals, the general statement is false.
The so-called normal size or standard size simply does not exist. There are various sizing systems that are not 1:1 comparable, meaning L does not always have to correspond to L. There is no binding standard for this within the EU. The application of standard EN 13402, which deals with clothing sizes, is voluntary. There are also no mandatory standards in the USA. This means that it is always necessary to consult the manufacturer's specific size chart and take precise measurements to find the right size for oneself.
How do I measure correctly?
First, it is important to measure at all. The measurement should be carried out as precisely as possible and should follow the guidelines of the respective manufacturer.
How do I measure my waist size?
First, feel for the top edge of your hip bones on the right and left, known as the iliac crests. At exactly this point, place a tape measure completely around your entire body. The tape measure should lie loosely on the skin, but not be overly tight. So, you are essentially measuring where the waistband of your trousers would rest. The reading corresponds to your waist size.
How do I measure my thigh circumference?
Here, you loosely place a tape measure on your skin and measure all the way around your thigh. The value obtained is the thigh circumference. It is important to note the height below the crotch. This is always determined by the manufacturer's specifications, as it depends on the specific cut. Both thighs should also always be measured; if there is a difference in the values, we recommend using the larger value for size determination.
In the case of our ultra-comfortable MANDERWEAR men's underwear, the measurement must be taken 8 cm below the crotch.
Expert tip from clinical practice:
If there is uncertainty as to whether one is measuring at the correct spot, or if the tape measure has slipped, we recommend marking it with a pen. This at least makes a correct measurement easier. In clinical practice, this is used, for example, when one wants to measure the progression of a swelling, to ensure that the circumference is always measured at the same spot.
Diagram of measuring instructions using MANDERWEAR as an example
The following diagram shows, using our shorts as an example, how and where to measure to determine the optimal size:

How do I find my size?
After measuring, it is important to compare the determined values with the manufacturer's size chart. Reputable manufacturers usually publish their size charts on their website. Of course, our size chart is also available online (found directly above the color selection for the shorts).
The importance of the right size
As manufacturers of innovative, highly specialized men's underwear, we understand that many find measuring complicated or time-consuming. However, the decision of whether to simply choose a size or actually measure can make a significant difference – and not just in terms of wearing comfort.
Comfort and Fit
First and foremost, it is clear: ill-fitting underwear is generally less comfortable than perfectly fitting underwear. For this reason alone, choosing the correct size should be in one's own interest.
Boxer shorts roll up the leg
One of the classic problems is when shorts roll up the leg and the fabric forms a kind of fabric roll or crease near the crotch. This is usually caused by the shorts being too tight on the leg, causing the fabric to fold over and/or roll up. This is not only uncomfortable, but in extreme cases can even lead to chafing in the affected areas. In addition, in the case of severe constriction, blood circulation can be temporarily impaired.
Holes in the crotch
A widespread problem is holes in the crotch. Here too, size can make a difference. If shorts are too tight on the leg, the fabric in the perineal region does not fit properly against the body. The same can be the case if the cut of the shorts simply does not suit one's physique. As a result, increased tensile forces occur in the crotch area. This is further intensified if one constantly has to pull the boxer shorts up at the waistband to prevent a so-called "builder's cleavage" or if the shorts are too tight at the buttocks. Fairly, it should be mentioned that the said area simply represents a critical point, as various factors that stress the material generally converge here.
Lifespan of boxer shorts
The lifespan of a garment is determined by several factors. Proper care is essential, but one should not underestimate the choice of size. The background is that shorts that are too tight lead to the fabric being excessively stretched when worn, often at the limit of its resilience. Even a single overstretching of a seam, the fabric, or the elastic waistband can cause permanent damage to the material and thus significantly reduce the product's lifespan. Open seams, stretching out, and various other defects can be the consequence. A factor that many underestimate.
Author: Alexis Knell.