Another PI sunsleeve user and for many years, many climbs up to 105°. So far PI are the best I've used. A somewhat funny little story: Perhaps some of you remember the fad for "cold black" a few years ago. So my wife and I were on our tandem at the 100 mile mark on a long event ride, about 105°, perhaps the hottest ever for this ride, when we caught up to a single rider, a tall slim guy wearing all cold black including sunsleeves and sunleggings. We were starting the final big climb, the heart breaker, and this guy was pedaling slowly, no hands, arms held straight out for cooling. We went around him and never saw him again. About 100 people were sagged off the ride that year and he was probably among them. We were wearing our sunsleeves and thin tight light colored jerseys. We were sweating pretty good, good for cooling. There was a water stop halfway up, TG.

We leave our legs bare and use sunscreen on them and our faces and necks, etc.