It allows you to quickly store used flies, it ensures the security of the storage unlike the simple foams that sometimes lose flies, while letting them dry in the air. C&F Design CFA-25/S MICRO SLIT FOAM FLY PROTECTOR 14.95 €
Chest storage has evloved with foam changer feature. Two of System Foams used in a boat box or universal fly case can be swithched onto the main body. C&F Design UNIVERSAL SYSTEM CHEST STORAGE 149.90 €