IKKS uses the French sizing system, but the fit varies depending on the type of garment and the collection (women, children, babies). A women’s size 38 does not fit the same way on a top, straight pants, or a leather jacket. For children, the age displayed on the label is not enough: the height in centimeters and the adjustment options make all the difference.
This article compares the IKKS sizing discrepancies by category of piece, for women and children, based on manufacturer data.
IKKS women’s sizing discrepancies by category of clothing
The point that generates the most confusion is that IKKS sizing varies from one category to another. Tops (shirts, blouses, sweaters, jackets) follow a letter grid ranging from XS to XXL. Pants, jeans, skirts, and dresses can be offered directly in French sizes 34 to 44. The table below summarizes the correspondences for women’s tops, according to manufacturer data:
| Chest circumference (cm) | Waist circumference (cm) | Hip circumference (cm) | Size to buy |
|---|---|---|---|
| 80-81 | 60 | 87 | 34 / XS |
| 84-85 | 64 | 91 | 36 / S |
| 88-89 | 68 | 95 | 38 / M |
| 92-93 | 72 | 99 | 40 / L |
| 96-97 | 76 | 103 | 42 / XL |
| 100-101 | 80 | 107 | 44 / XXL |
For leather jackets, the logic changes: only the chest circumference serves as a reference. The values are shifted compared to classic tops, with, for example, 89 cm for an M instead of 88-89 cm. The difference may seem small on paper, but it reflects a more fitted cut at the bust.
If you’re looking to understand how IKKS sizes for children and women on bottoms (straight pants, skirts, wide jeans), the hip circumference becomes the primary measurement. The fitted cuts on dresses and pants make this data more discriminating than the waist circumference.
IKKS children’s size: height and adjustments rather than age
The label of an IKKS children’s garment associates an age with a height in centimeters. A jean marked “5 years” corresponds to a height of 110 cm. Two children of the same age can have several centimeters of height difference: relying solely on age leads to frequent mistakes.
Beyond height, the cut and material change the feeling of size. A slim jean in stretch fabric with an adjustable waist offers a margin that a straight cotton pant does not. These characteristics sometimes allow for maintaining the same size for an additional season.
- Height in centimeters is more reliable than age for choosing the right IKKS children’s size.
- Pieces in stretch material with an adjustable waist tolerate slight morphological differences.
- An IKKS children’s slim jean sizes differently than a straight pant from the same collection: checking the cut on the product sheet remains the safest reflex.
IKKS garment length: the forgotten data
Most guides focus on chest, waist, and hip circumferences. The length of the garment is rarely mentioned, yet it changes the appearance of a dress or blazer depending on the body shape. An IKKS dress, for example, has a length of 95 cm for a size 36. This information appears on some product sheets (Spring, among others), but not systematically.
For a woman measuring less than 1.65 m, a midi dress of 95 cm will fall below the knee. For a woman of 1.75 m, the same piece will stop above. The style changes completely. Checking the length in centimeters before purchasing avoids the need to alter or return the garment.
When length affects size choice
On high-waisted straight pants or wide jeans, the inseam length is not always indicated. If you’re torn between two sizes, prioritize the one whose hip circumference best matches your measurements, then check if the brand offers different lengths on the chosen model.
IKKS women’s cuts: blazer, dress, and pants compared
IKKS constructs its patterns on the French system with cuts often close to the body on tops, dresses, and jackets. However, some models like high-waisted wide jeans or satin jumpsuits adopt a looser fit that can give the impression of running large.
In concrete terms, the trend can be summarized as follows:
- Blazers, leather jackets, and fitted tops tend to fit closely. Taking your usual size works if your measurements match the manufacturer’s table.
- Straight pants and structured skirts require checking the hip circumference as a priority, especially for body shapes with pronounced hips.
- Dresses and jumpsuits vary greatly from one model to another. A cotton midi shirt dress does not fall the same way as a short satin V-neck dress, even in the same size.
The size chart by product sheet remains more reliable than a general rule applied to the entire brand. Each IKKS model has its own characteristics in terms of cut, material, and length. Generalizing “IKKS runs small” or “IKKS runs large” ignores these variations from one piece to another.
The most effective reflex before any purchase of IKKS clothing, for women or children, remains to measure your actual measurements (or the child’s height), then compare them to the specific chart of the targeted model. This is the only method that takes into account the cut, material, and category of clothing.
