Fashion and patterned wellingtons: the Hunter Original range (tall gloss, short natural rubber, side-adjustable and Chelsea boot) and Cotswold's Woodland deer print and Cleeve tall boots.
These are made for festivals, dog walking and the school run, and they do the job on a wet lawn. If you need warmth or long days on rough ground, a neoprene-lined boot is the better tool: see Textile & Neoprene-Lined Wellingtons. For plain working boots see Rubber Wellingtons, and for younger feet Children's Wellingtons.
Check the calf measurement on the listing for tall boots; fit varies between models.