STEP 01
Sizing Kit
We'll send you a curated set of sizing rings. It's the only way to truly feel the weight and fit of the Usay band across different fingers.
STEP 02
Wear for 24 Hours
Your fingers change size throughout the day. Wear your chosen sizing ring for a full cycle to ensure comfort during sleep, work, and movement.
STEP 03
Update Order
Once you've found your perfect fit, return to your account and select your size. Your custom-crafted ring will be prioritized for shipment.
Technical Specifications
Find your perfect fit with our comprehensive sizing guide. Each measurement has been precisely calibrated to ensure optimal comfort and performance.
Dimensions in Millimeters (mm)
US Size
Circumference
Diameter
Fit Recommendation
6
51.8 mm
16.5 mm
Petite
7
54.7 mm
17.4 mm
Small
8
57.2 mm
18.2 mm
Standard Small
9
59.7 mm
19.0 mm
Standard Medium
10
62.5 mm
19.9 mm
Standard Large
11
65.0 mm
20.7 mm
Large
12
67.5 mm
21.5 mm
Extra Large
13
70.1 mm
22.3 mm
Robust
14
72.6 mm
23.1 mm
Extra Robust
Ready to begin your journey?
Start with the Sizing Kit. It's included with every order and ensures your experience is seamless from day one.