Performance Fit
Tight-fitting, smooth and as crease-free as possible. Suitable for running, gymnastics, water sports and other sporting activities, with a secure fit.
SIZES & FIT
Not just bigger or smaller. Just the right size.
TWIOO SPORTS develops close-fitting styles for different sports, body shapes and movements. That’s why it’s not just the letter on the label that matters, but also the style range, fabric, waist height, leg length and desired fit.
01 · THE MOST IMPORTANT NOTE
A table isn’t suitable for every product.
Low-rise unisex tights, women’s leggings with a higher waistband, men’s running tights and a full-body suit may fit differently despite having the same size label.
This page is designed to help you find your way around. However, the information provided for each specific product remains crucial, as it takes into account the material, cut and specific lengths.
If in doubt, the following applies:
Read the product description first, then look at your body measurements and the desired fit together.
02 · HOW SHOULD IT FIT?
Tight doesn’t automatically mean too small.
Polyamide-elastane products are designed to fit close to the body. If they are too loose, this can compromise features such as the elasticated waistband, compression or a secure fit.
Comfort Fit
Slightly less tight for everyday wear, warm-ups or customers who are between sizes and prefer less compression.
Too small
Seams or prints are subjected to unusually high stress; the waistband cuts into the skin, or the garment can only be pulled on with considerable effort.
Too big
Creasing, a waistband that rides up, excess fabric in the crotch, or a lack of support when moving.
03 · MEASURING CORRECTLY
Five measurements say more than a single size letter.
It is best to take measurements over thin, close-fitting clothing. The tape measure should lie straight and loosely against the body, without constricting it.
Chest circumference
Measure horizontally across the widest part of the chest and shoulder blades.
Waist measurement
Measure at the narrowest part of your natural waist, not where a pair of low-rise trousers ends.
Hip circumference
Measure horizontally across the widest part of the hips and buttocks.
Inside leg length
Measure from the crotch along the inside of the leg to the desired hem.
Fuselage length
For full-body suits, measure from the shoulder point through the crotch and back to the starting point.
04 · MODEL SERIES
Which TWIOO range is right for me?
The following overview describes the general fit. Sizes, materials and details may vary for individual items.
12
Unisex tights
ENERGY · Series 12
low-rise · close-fitting · narrow elasticated waistband
- Sizes
- je nach Modell etwa XS/158 bis 3XL
- Lengths
- lang, Capri, lange und kurze Radlerlänge sowie flared
- Models
- 1250, 1254, 1255 und weitere Varianten
Fit guide
The range has been designed as a versatile unisex base layer. If you have a distinctly feminine or masculine body shape, a specific women’s or men’s range may be a better fit.
14
Women's Leggings & Running
Women · Series 14
women’s cut · mid-rise to high-rise waistband
- Sizes
- modellabhängig von Kindergrößen bis etwa 3XL
- Lengths
- lang, Radler und Hotpant
- Models
- 1460, 1401, 1405, 1407
Fit guide
The individual models differ in terms of waist size, leg length and functional details. The product description is therefore crucial.
16
Men's Running Tights
GRAVITY · Series 16
low-rise · close-fitting · wide elasticated waistband
- Sizes
- je nach Modell etwa XS/158 bis 3XL
- Lengths
- lang sowie kurze und lange Radlerlänge
- Models
- 1680, 1685, 1686, 1678
Fit guide
The men’s range has been designed with a distinctive front panel and a long, sporty, slim fit. PREMIUM TENSION may fit more snugly than the classic SLEEK – or SHINE – versions.
13 / 17
Women & Men
WINTER LAYERS
close-fitting · warm · slightly shorter depending on the style
- Sizes
- artikelabhängig
- Lengths
- normale bis leicht verkürzte Beinlänge
- Models
- 13W1 und 17W1
Fit guide
WL BLACK It fits snugly and is worn as a base layer. It should not be chosen unnecessarily loose, so that the insulating layer stays close to the body.
125 / 130
Unisex and women's
GYMNASTICS & PERFORMANCE
from low-rise to regular waist · very stretchy
- Sizes
- je nach Modell Kindergrößen bis 3XL
- Lengths
- lang, Capri, Radler, Hotpant und Sonderlängen
- Models
- 1250, 1301, 1308 und weitere Varianten
Fit guide
SLEEK SHINEs are very stretchy. The fit you prefer is a key factor: tight for training and performances, or a size larger for comfort in everyday wear and less compression.
SUIT
Unisex, women’s and sport-specific cuts
FULL SUITS & SWIMRUN
close-fitting · torso length is particularly important
- Sizes
- modellabhängig
- Lengths
- kurze und lange Beine sowie verschiedene Oberkörperlösungen
- Models
- Show-, Gymnastik-, Wassersport- und Swimrun-Modelle
Fit guide
With full-body suits, a standard ready-to-wear size is often not sufficient. Height, torso length, upper body measurements and the intended use must all be taken into account.
126A
Extra-long special fit
FLARED LEGGINGS
low-rise · extra-tight around the thighs · narrow leg
- Sizes
- modellabhängig
- Lengths
- Innenbeinlänge etwa 87 cm bei der extra langen Variante
- Models
- 126A
Fit guide
The extra-long version is designed for people who are around 1.75 to 1.85 metres tall and have very slender legs. For other body types, regular leggings are often the better choice.
05 · MATERIAL AFFECTS THE FIT
Same cut. Different feel.
Stretchy fabrics behave differently. That is why the same size may look different in a soft PREMIUM fabric than in a stiffer PREMIUM TENSION fabric or a very stretchy SLEEK – or SHINE – fabric.
That doesn’t mean the size chart is wrong. It means that fabric stretch and the desired fit need to be taken into account when making your choice.
View all materialsRelaxed Performance Fit
Smooth, with a silky-matt finish and stretchy. Form-fitting, but less compressive than TENSION.
Noticeably firmer
A snug fit and a slightly compressive feel. If you’re between two sizes, the level of compression you prefer may be the deciding factor.
Very elastic
Shiny nylon-Lycra fabrics cling closely to the body, creating a sporty, snug fit.
A close-fitting winter layer
Brushed on the inside and comfortable. When choosing it as a warm layer, don’t go for one that’s unnecessarily baggy.
06 · INTERNATIONAL SIZE GUIDE
US and EU are not the same letter.
European performance clothing often fits more snugly than typical American sportswear. The tables are intended as a rough guide only; they do not guarantee a specific fit.
Important:
European sizes are generally more fitted than typical US sportswear. Product-specific fit notes and body proportions are more important than a direct conversion based on letter sizes.
| US | EU | Height | Weight | Build |
|---|---|---|---|---|
| XS | 44 | 165–175 cm | 55–65 kg | very slim |
| S | 46–48 | 170–180 cm | 65–75 kg | slender to athletic |
| M | 48–50 | 175–185 cm | 75–85 kg | regular |
| L | 52 | 180–190 cm | 85–95 kg | strong upper body |
| XL | 54–56 | 180–195 cm | 95–105 kg | athletic to sturdy |
| 2XL | 58 | 180–200 cm | 105–115 kg | very strong |
| 3XL | 60–62 | 180–200 cm | 115–125 kg | broad build |
| US | EU | Height | Weight | Build |
|---|---|---|---|---|
| XS (2–4) | 34–36 | 155–165 cm | 45–55 kg | very petite |
| S (4–6) | 36–38 | 160–170 cm | 50–60 kg | slim |
| M (8–10) | 38–40 | 165–175 cm | 60–70 kg | regular |
| L (12–14) | 42–44 | 170–180 cm | 70–80 kg | curvy to athletic |
| XL (16–18) | 46–48 | 170–185 cm | 80–90 kg | sturdy to muscular |
| 2XL | 50 | 170–190 cm | 90–100 kg | broad build |
Height and weight can result in very different proportions. This overview is therefore no substitute for taking your own measurements or for the information provided on the specific product.
07 · SPECIAL CASES
When is it worth asking for a quick clarification?
If the proportions differ significantly or the item is intended for a specific purpose, it is often better to seek a personalised recommendation rather than ordering three sizes to choose from.
Between two sizes
For a snug, compression-style fit: go for a smaller size. For a more comfortable fit, or if you’re sensitive to seams and prints: go for a larger size.
Very large or very small
Leg and torso length may be more important than circumference. Check the different models and special lengths.
Full-body wetsuit or swimrun
Consider the length of the torso, shoulder width and how the board performs in the water as a whole. Weight and height alone are not enough.
Team and club orders
Collect sizes in a structured way and, for larger projects, plan for samples or a coordinated sizing round.
08 · TEAMS, COMPANY RUNS AND CLUBS
25 parts require more than 25 assumptions.
For team projects, we collect sizes, styles and any special instructions in a structured manner. Depending on the scope of the project, it may be advisable to provide size samples or organise a coordinated fitting.
It is important to note that not everyone is automatically allocated the same unisex range. Women’s, men’s and unisex styles can be combined within a single design.
Combining women’s, men’s and unisex styles
Different product lengths
Recording size charts in a structured way
Tailor templates to specific projects
Record repeat orders
Maintain a consistent design
09 · PERSONAL SIZE GUIDE
It’s better to ask a sensible question just once.
Please tell us the product or model number, your height, your hip and bust measurements, and how tight you’d like the garment to fit. This will enable us to help you much more effectively than if you just gave us a single letter.
For a quick recommendation
- Product or model range
- Height
- Chest, waist or hip measurements
- Preferred seat: performance or comfort
- for one-piece suits, also the torso length
A GOOD FIT DOESN’T START WITH THE LABEL.
Take your measurements. Understand the model. Then choose your size.
TWIOO SPORTS They have a sporty, close-fitting cut. When paired with the right range, they’re not just a pair of tight trousers, but a product that performs well when you’re on the move.
As at: Juli 2026