The Nylon Loop band comes in 3 distinct sizes: small, medium/large and extra large. Each size is fully adjustable.
Small
13mm | Fits wrist: 3.7 in – 5.8 in | 94 mm – 147 mm
13mm | Fits wrist: 3.7 in – 5.8 in | 94 mm – 147 mm
19mm | Fits wrist: 3.9 in – 6.2 in | 99 mm – 157.5 mm
Medium/Large
13mm | Fits wrist: 4.5 in – 7.4 in | 114 mm – 188 mm
13mm | Fits wrist: 4.5 in – 7.4 in | 114 mm – 188 mm
19mm | Fits wrist: 4.9 in – 8 in | 124.5 mm – 203 mm
Extra Large
13mm | Fits wrist: 5.8 in – 9.42 in | 147 mm – 239 mm
13mm | Fits wrist: 5.8 in – 9.42 in | 147 mm – 239 mm
19mm | Fits wrist: 5.8 in – 9.42 in | 147 mm – 239 mm
Still need help deciding? Follow these steps:
Step 1
Step 1
Fold a dollar bill in half. No dollar bill? Simply use a 6.125" (15.5 cm) strip of paper.

Step 2
Gently wrap around your wrist. Note the width of the "gap" between the edges. For proper sizing, do not wrap the dollar too tightly.

SMALL:
Gap is LESS than 1/4" (0.6 cm) or the bill overlaps
Gap is LESS than 1/4" (0.6 cm) or the bill overlaps
MEDIUM/LARGE:
Our most common size: Gap is between 1/4" (.6 cm) and 2" (5 cm)
Our most common size: Gap is between 1/4" (.6 cm) and 2" (5 cm)
EXTRA LARGE:
Gap is GREATER than 2" (5 cm)
Gap is GREATER than 2" (5 cm)