I took these for a test paddle in the sun. The concept is good but not great. Unless the sun is directly behind you at all times your fingers are still getting full sun exposure. They are comfortable and lightweight; I don't think cutting the fingers off was necessary. I want more sun protection.
For a paddler in Florida these gloves are the best. They are light but have the padding where I needed it at the thumb-palm area. I would recommend them any time.