A group of boys went to school in skirts and PE kits in protest of being made to wear their full uniform during the heatwave.
Parents expressed their concern over "unfair" rules as temperatures soar over 30C, while teachers are able to go in "skirts and shorts".
They also revealed that some children were sent to detention for wearing school-branded PE kits. Boys at two schools in south Wales wore skirts on Friday in protest.
Siobhan Bates' son Bradley is a 13-year-old year nine pupil at Ysgol Dyffryn Aman. She said she sent her son to school in his PE kit on Thursday, which saw him put in detention, Wales Online reports. Try MEN Premium for FREE by clicking here for no ads, fun puzzles and brilliant new features The 35-year-old said: "When he got to school, he got off the bus and a teacher stopped them going into school.
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