Your customers who bought the Sonictrek Go XL love it enough to want to protect it and a well designed silicone cover that adds grip, colour, and durability is exactly the kind of purchase they make without needing much convincing.

This is a natural attachment sell at the point of Go XL purchase. A customer deciding to spend on the speaker who is shown the cover alongside it will frequently add it especially when the protection benefit is framed clearly.

Outdoor and active customers think practically about protecting gear. A surfer, camper, or beach goer who has scratched or dropped equipment before doesn't need to be persuaded that a cover is worthwhile.

It's a low cost item with strong perceived value. The cover looks like a considered accessory, not a cheap afterthought which means it reads as a premium add on at a price point that makes the decision easy.

Colour variety drives multiple purchases. Customers who want to distinguish their speaker from a friend's, or who just want a fresh look, will buy a second cover it's the kind of low friction repeat purchase that adds up quietly.