The Cressi Metis and Corsica Mask & Snorkel Set is a very comfortable silicone set designed for use when spearfishing, free diving or snorkelling. It's a great set for the more serious spearos that don't want to pay huge dollars for a quality low-volume, black silicone set.
The Cressi Metis mask is a quality silicone mask built with tempered glass lenses. It's a very low-volume mask which is beneficial for both your field of view and ease of equalisation. Being lower volume it sits closer to your face, so your field of vision increases from side to side which is particularly good when snorkelling or spearfishing. The black silicone skirting around the mask also provides you with a more focused view as there's no light leaking in from the sides, which is great for low light and low-vis situations.
The Cressi Corsica snorkel is a designed specifically for spearfishing as it's lightweight and streamlined with no purge valve, however it can still be used just as well when snorkelling. The mouthpiece is 100% silicone so it's very comfortable, and the body is a soft PU that can be easily bent and folded without damaging it.