CNFans UK clothing guide
CNFans Size Up or True to Size?
Going one size up sounds like an easy rule. It is not. The better choice depends on the garment measurements, the intended fit and the layers you plan to wear underneath.
Start with the fit you actually want
True to size only has meaning when you know what the maker intended by that size. A regular hoodie, an oversized sweatshirt and a cropped jacket can all use the same letter while leaving very different amounts of room around the body. Decide first whether you want a close, regular or relaxed result.
Sizing up is useful when you want extra ease through the chest, a longer sleeve or room for a layer. It can also make a shoulder seam drop lower and change the shape more than you expect. If you only want a little more width, a larger label may give you too much length as well.
Why measurements beat the label
A product page may show chest width, shoulder width, sleeve length and body length. Those figures describe the garment in front of you; the letter is only a broad label. Compare the measurements with a similar piece you already like instead of treating M, L or XL as a universal standard.
Measure your reference garment flat and use the same method for the listing. A chest measurement taken across the front is not directly comparable with a full circumference unless you account for the difference. Small method errors can make a size-up decision look more certain than it is.
When staying true to size makes sense
Stay with your usual label when the listing measurements match a garment that fits you well and the cut is described as regular. This is often the safer choice for jackets with shaped shoulders, trousers with a fixed waist or tops where excess fabric would spoil the intended line.
A familiar size also makes sense when the fabric has structure and the product is not designed to look loose. Extra room cannot always be removed by styling. A jacket that is too wide at the shoulders may feel less comfortable, even if the chest has plenty of space.
When sizing up is reasonable
Consider the next size when the measurements are smaller than your reference garment, when the product is meant to layer, or when you deliberately want a relaxed silhouette. For a hoodie, compare the shoulder and sleeve as well as the chest because a wider body with short sleeves can still feel wrong.
For trousers, do not use the same rule automatically. A larger waist can create a poor rise and extra fabric at the seat. Check waist, hip, rise and inside leg together, then decide which compromise you can actually live with.
A quick decision before ordering
Put your reference garment beside the product measurements and write down the two or three figures that matter most. For a hoodie that may be chest, body length and sleeve; for a jacket it may be shoulder, chest and sleeve; for jeans it is usually waist, rise and inside leg.
If the choice still sits between two sizes, use the product photos to check the intended proportion, then read the CNFans size guide for the measuring method. The goal is not to find a universal size-up rule. It is to choose the garment that matches how you plan to wear it.
Keep the decision practical
A larger label is only helpful when the measurements and the planned fit support it. Keep the reference garment, the listing and the way you will layer in view at the same time.