Discover the KIJN way to finding your perfect fit. Our easy-to-follow size guide takes the guesswork out of shopping helping you measure waist, hips, and bust with confidence. Whether you're choosing soft feel sculpting leggings or everyday essentials, we've made it simple to find pieces that move with you. Comfort starts here.
KIJN Size Guide
Made to move with you from studio to sofa.
Our pieces are crafted to feel supportive, flattering, and effortlessly cool. Use this guide to find your best fit across all our styles.
🖤 Leggings
KIJN Size | UK Size | Waist (in) | Hips (in) |
---|---|---|---|
XS | 6–8 | 24–26 | 34–36 |
S | 8–10 | 26–28 | 36–38 |
M | 10–12 | 28–30 | 38–40 |
L | 14–16 | 30–33 | 40–43 |
XL | 16–18 | 33–36 | 43–46 |
XXL | 20–22 | 36–39 | 46–49 |
XXXL | 22–24 | 39–42 | 49–52 |
- ✓ High-waisted with 4-way stretch
- ✓ True to size, size up for a softer lounge fit, size down for sculpting feel
- ✓ If between sizes, go by hip measurement
🤍 Tops (Tees, Cropped Tees, Tanks)
KIJN Size | UK Size | Bust (in) |
---|---|---|
XS | 6–8 | 30–32 |
S | 8–10 | 32–34 |
M | 10–12 | 34–36 |
L | 14–16 | 36–38 |
XL | 16–18 | 38–40 |
XXL | 20–22 | 40–42 |
XXXL | 22–24 | 42–44 |
- ✓ Designed for comfort soft, breathable fabric
- ✓ Classic and oversized fits available (see individual product pages)
- ✓ Size up for a looser, slouchier look
🖤 Hoodies (Oversized Fit)
KIJN Size | UK Size | Chest (in) |
---|---|---|
XS | 6–8 | 32–34 |
S | 8–10 | 34–36 |
M | 10–12 | 36–38 |
L | 14–16 | 38–41 |
XL | 16–18 | 41–44 |
XXL | 20–22 | 44–47 |
XXXL | 22–24 | 47–50 |
- ✓ Intentionally oversized we recommend your usual size
- ✓ Size down for a more fitted look, or up for extra slouch
🤍 Hats (One Size)
All KIJN caps are adjustable with a strap at the back.
Designed to fit most adult head sizes comfortably.
📏 How to Measure
- Waist: Narrowest point of your torso
- Hips: Widest part of your hips and bum
- Bust/Chest: Fullest part of your chest
Use a soft measuring tape and keep it snug but not tight.
💬 Need Sizing Support?
We’re here to help. Reach out anytime at hello@wearekijn.co.uk our team will guide you to your perfect fit.
Ready for your next staple? Explore our elevated activewear supportive leggings, buttery-soft basics, and effortlessly cool everyday pieces.

Leggings

Sweaters

Tees
