Kids sports wear (Sandbed Lane Belper DE56 0SJ)

Hi, Middle East war permitting, my partner and I hope to travel to a village in Nepal at the end of October 2026 to perform some charity work. I have asked what of use we can take out and children's sports wear has been requested. I guess shorts, shirts, skirts, hoodies etc for an age range of perhaps 5 to 16. I will be filling one large suitcase only and would prefer not such as puffer jackets that will take up a lot of space. I would be very grateful of any secondhand good condition sportswear fitting the above criteria. Thank you very much, Dave