Nike Men's Long Sleeve Denier Differential 1/2 Zip Top (£38)
Yes, it's officially spring and yes, the days are getting longer but that doesn't mean the British weather is getting any more reliable. This long-sleeved top is a good halfway-house option if you want to start shedding layers but don't want to throw caution to the wind. It's made from a dual density differential fabric which has two different sized yarns (large next to the skin and tight on the outside), which Nike claim improves the fabric’s ability to wick sweat away from the skin. It works, it looks good, and it's a snip at £38 – what more do you want?