Shoulder wrap is the best design
"I have previously used UPF50+ arm sleeves which were uncomfortable and always slipped down exposing my upper arm to the sun. This design of shoulder wrap prevents this happening. It also gives added protection for upper back and shoulders where clothing may be stretched. The clever design means the armpit area is left open, keeping you cooler when exercising. I normally wear gloves bike riding but the old version of sleeves even sometimes slipped up and left a gap at the wrist. The shoulder wrap thumb loop prevents this yet remained comfortable under the gloves. Just want a navy blue added to the colour list ☺️"
