Sainbury's TU range was crowned the most affordable school uniform for all age groups Sainbury's TU range was crowned the most affordable school uniform for all age groups, with a multipack of short sleeve shirts for 4-5 years coming in at just £3 and a sweet scalloped cardigan for only £6. Shoppers are able to get two red scalloped cardigans for £6.00 (£3.00 per item) and three white short sleeve shirts for £4.00 (£1.33 per item) Perfect for PE and sports days, Sainsbury's offer three white unisex polo shirts for £3.50 (£1.16 per item) and two black V-neck jumpers for £6.00 (£3.00 per item) which can be thrown over any grass stains