The face is clean cut with a well-developed muzzle and wide, black nostrils. The full and prominent eyes are dark and mild in expression. The medium-sized ears are semi-erect and well covered with white hair with the occasional black spot. The teeth should meet the pad without overhanging.
The neck is of medium length leading to a wide, level back with a broad, flat loin. There is plenty of heart room in the broad, deep chest and no depression behind the shoulder blades. The ribs are well sprung and the body deep with broad, square hindquarters. The legs have strong flat bone and are free from wool. Like the face and ears, the strong legs have clean, flat bones and are covered in fine white hair. The hooves should be dark. The fleece covers the body evenly with a lustrous wool with good length of staple and good density. The crimp is well defined, the fleece dense and weighty with no kemp or coarse fibres.
The Border Leicester carries himself proudly, with an alert manner and a symmetry that adds to his noble appearance. The rams weigh in the vicinity of 140 - 175 kg with ewes weighing 90 - 120 kg. Staple length ranges from five to ten inches. A ram's fleece weighs 6 - 9 kilos and a ewe's fleece 4 - 6 kilos.
Border Leicester aficionados call the Border Leicester 'the great improver' and one of its more valued traits is upgrading particular features in other breeds. High fertility, superior mothering skills, top quality, large, lean lambs, heavier lambs meaning greater profitability in a shorter time frame, good wool yields, less woolly legs and face mean easier husbandry and management.