Mainsail XL is a direct size extension of one of our best-selling Hybrid Frames, Mainsail, providing a broader reach of water explorers the same functionality, versatility and aesthetic they’ve come to love. Micro side shields and hooding provide a heightened level of coverage, minimal light leak and protection from the elements. Vented nose pads increase ventilation across the frame, reducing the risk of fogging. Retainer ready temple tips allow users to affix any retainer of their choice to ensure their frames aren’t lost while exploring.
Mainsail XL is a direct size extension of one of our best-selling Hybrid Frames, Mainsail, providing a broader reach of water explorers the same functionality, versatility and aesthetic they’ve come to love. Micro side shields and hooding provide a heightened level of coverage, minimal light leak and protection from the elements. Vented nose pads increase ventilation across the frame, reducing the risk of fogging. Retainer ready temple tips allow users to affix any retainer of their choice to ensure their frames aren’t lost while exploring.
in 2 offers
last seen 10 May 2026
The lowest price we last saw for COSTA 6S9107 Mainsail Matte Black - Man Sunglasses, Gray Lens was $197.60 at Costa Del Mar, compared across 2 retailers (last seen 10 May 2026). Prices may have changed since.
The all-time low we recorded was $197.60 on 7 Dec 2025.
Prices last updated 10 May 2026.
COSTA 6S9107 Mainsail Matte Black - Man Sunglasses, Gray Lens
Mainsail XL is a direct size extension of one of our best-selling Hybrid Frames, Mainsail, providing a broader reach of water explorers the same functionality, versatility and aesthetic they’ve come to love. Micro side shields and hooding provide a heightened level of coverage, minimal light leak and protection from the elements. Vented nose pads increase ventilation across the frame, reducing the risk of fogging. Retainer ready temple tips allow users to affix any retainer of their choice to ensure their frames aren’t lost while exploring.
Mainsail XL is a direct size extension of one of our best-selling Hybrid Frames, Mainsail, providing a broader reach of water explorers the same functionality, versatility and aesthetic they’ve come to love. Micro side shields and hooding provide a heightened level of coverage, minimal light leak and protection from the elements. Vented nose pads increase ventilation across the frame, reducing the risk of fogging. Retainer ready temple tips allow users to affix any retainer of their choice to ensure their frames aren’t lost while exploring.
Last updated at 10/05/2026 15:04:39
Mainsail XL
Free delivery between 20–22 May
Costa Del Mar 6S9131 MAINSAIL XL Full Frame Mens Sunglasses, 913101 MAINSAIL XL MATTE BLACK GRAY 5 (BLACK)
Delivery $61.96
Mainsail XL
Free delivery between 20–22 May
Costa Del Mar 6S9131 MAINSAIL XL Full Frame Mens Sunglasses, 913101 MAINSAIL XL MATTE BLACK GRAY 5 (BLACK)
Delivery $61.96
