BBC Sport's Ask Me Anything team explains how cooling jackets work and why they are being used by sports teams.

Manchester United are using their United States tour to trial new cooling jackets kit manufacturers Adidas feel will be in widespread use at next summer's World Cup. Extreme weather was a significant ...

Inching ever-closer to perfection, the famed outdoor brand's seemingly incremental improvements make a big difference. Here's ...

Transfer grades: Chelsea offload Joao Felix to Al-Nassr; Why a Thomas Muller move to MLS is a great idea Here's the latest news and notes from the summer transfer window, which is in full swing ...

Transfer grades: Liverpool's Luis Diaz to Bayern Munich; Viktor Gyokeres finally joins Arsenal Here's the latest news and notes from the summer transfer window, which is in full swing ...