STEP 1: Measure the length
Measure from the fingertip to just above the cast or dressing.
The cover can be longer than necessary.
STEP 2: Measure the circumference for a watertight seal.
Measure the distance around the arm just above the cast.
STEP 3: Check the size chart.
Based on the arm sizing chart, choose the Bloccs® cover that will fully fit over the cast or dressing whilst still forming a tight seal.
If the needed cover is going to be longer you may also want to measure the circumference further up the arm.
Note: Always measure for a watertight fit.