This Jock is a great fit for most packers* and StPs. 

• Reinforced O-ring stretches to accommodate most packers
• Interior panel covers your device but is split so you can use it with StPs
• Soft, stretchy and comfortable
• 95% Cotton, 5% Spandex

Waistband fits aprox. sizes:

XS/SM = 25 -29"

MED/LRG =  29- 34"

LRG/XL = 32-42"

(the company does not list sizes so this is our best estimate. They are pretty stretchy but you do want them to fit snuggly)

Packer not included. *Small packers like Small Pierre/Archer might not fit great in here as the hole is a little on the big side.