In 21 WK Athletic Women Shoe
In 21 WK is built for forward motion.
A lightweight athletic silhouette designed to keep up — and keep you elevated.
Design & Feel
Streamlined and purposeful, this design pairs bold Sania Marie energy with everyday wearability. Matching soles and laces create a cohesive, intentional finish that feels refined yet expressive.
Whether your day is structured or spontaneous, this shoe moves with you.
Fabric & Construction
Breathable 100% polyester Flyknit upper provides flexible comfort and airflow. EVA rubber outsole offers lightweight durability and steady traction.
Soft insole, padded collar, and breathable lining ensure consistent cushioning throughout the day.
Fit Notes
True to size with adaptive knit flexibility. Designed for comfort without added bulk.
Poetry in Design
Forward is a decision.
Progress is a practice.
Walk like you mean it.
Crafted On Demand
Each pair is produced intentionally to reduce waste and preserve the integrity of our bold, exclusive prints.
Please allow 18–23 days for delivery as your shoes are made specifically for you.
Because of this fresh production process, a light factory scent may be present upon arrival. Simply allow them to air out for 1–2 days, and they’ll be ready to wear.
Size guide
| US WOMEN | UK | EUROPE | JAPAN | FOOT LENGTH (inches) | OUTSOLE LENGTH (inches) | INSOLE WIDTH (inches) | |
| 5 | 5 | 2.5 | 35.5 | 22 | 8 ⅝ | 10 | 3 |
| 5.5 | 5.5 | 3 | 36 | 22.5 | 8 ⅞ | 10 | 3 |
| 6 | 6 | 3.5 | 36.5 | 23 | 9 | 10 ¼ | 3 |
| 6.5 | 6.5 | 4 | 37.5 | 23.5 | 9 ⅛ | 10 ½ | 3 ⅛ |
| 7 | 7 | 4.5 | 38 | 24 | 9 ¼ | 10 ½ | 3 ⅛ |
| 7.5 | 7.5 | 5 | 38.5 | 24.5 | 9 ½ | 10 ¾ | 3 ¼ |
| 8 | 8 | 5.5 | 39 | 25 | 9 ⅝ | 10 ¾ | 3 ¼ |
| 8.5 | 8.5 | 6 | 40 | 25.5 | 9 ¾ | 11 | 3 ⅜ |
| 9 | 9 | 6.5 | 40.5 | 26 | 10 | 11 ¼ | 3 ⅜ |
| 9.5 | 9.5 | 7 | 41 | 26.5 | 10 ⅛ | 11 ¼ | 3 ⅜ |
| 10 | 10 | 7.5 | 42 | 27 | 10 ¼ | 11 ¾ | 3 ½ |
| 10.5 | 10.5 | 8 | 42.5 | 27.5 | 10 ½ | 12 | 3 ⅝ |
| 11 | 11 | 8.5 | 43 | 28 | 10 ⅝ | 12 | 3 ⅝ |
| 11.5 | 11.5 | 9 | 44 | 28.5 | 10 ¾ | 12 ½ | 3 ⅝ |
| 12 | 12 | 9.5 | 44.5 | 29 | 11 | 12 ¾ | 3 ¾ |
Our pieces are made to order—please check measurements carefully before purchasing.
Use the size guide chart to choose the fit that works best for you.
Machine wash with like colors.
• Machine wash cold
• Do not bleach
• Do not dry clean
• Do not iron
• Do not tumble dry
