ICEBREAKER Sprint Crew, £62.95,

Merino wool is soft, strong and machine washable, as well as being naturally wicking and almost completely odourless. The material in this jersey also has a three percent mix of elastane, giving it a slight stretch for a snug fit. This is a medium-weight base layer, ideal for cool weather commuting; it comes in four weights of cloth and various styles (zip, short sleeve, female cuts, etc). Pricey, but very effective performance-wise. MC

PROS naturally wicking, whiff-free
CONS quality doesn’t come cheap