Walkers Salt and Vinegar Flavoured Squares are one of the greatest crisps of all time. Fact. If you are a fan of these crisps then you can’t go far wrong with this Walkers Squares Salt and Vinegar 6 Pack. Walkers Squares Salt and Vinegar not only taste great, but they are relatively low in fat - each bag contains only 97 calories, making them healthier than many of their crisp brethren. Any genuine crisp lover will feel more than comfortable investing in a Walkers Squares Salt and Vinegar 6 Pack from the British Corner Shop today.