We’ve used two Snoozeshades for years and would recommend over an umbrella any day. They’ve been rigorously tested unlike cheap copies and so much safer than muslins/blankets over the top.
Ive been trying a red kite umbrella and its awful im constantly changing the umbrella to cover when crossing roads etc with the direction of the sun! Snooze shades are great I’ve always had one!
My husband recently got one from Mamas and Papas and it wasn't cheap (£20 in the sale I think) but it's really good! Bends anywhere I need it and you can move it with ease with one hand so even better mid walk