From plain underlayers to bold, splashy motifs, our men's crew neck T-shirt collection has pieces for every occasion. Stock up on basic kit, or treat yourself to a new look for the weekend. The key to choosing the perfect round neck T-shirt for men? The fit. If you're after a piece to layer over, a slim or skinny tee hugs close to your body for a smooth fit under shirts and jumpers. This is also a good choice if you're looking for a form-fitting shape that defines your frame. For a less structured outline, go for loose or oversized cuts that have plenty of volume and a more relaxed vibe. The traditional sleeve style for a round neck T-shirt is short and fitted, but you'll find loads of other options to choose from. Long sleeves add extra warmth and coverage, and provide maximum airtime for your favourite print. Sleeveless styles are ideal for layering up, as well as working out and kicking back. Once you've found the right shape, it's time to check out the fabric. Pure cotton and cotton-rich materials give great breathability and are gentle against your skin, making them a top choice for undershirts, as well as for warm-weather ensembles. If you're after a soft, worn-in texture, check out our slubby, pre-washed finishes that feel well-loved from their first wear. The sky's the limit when it comes to colours and prints. Simple plains are perfect for casual, everyday dressing, and make an easy partner for patterned shirts or knit pieces. Tie-dye patterns create a laid-back holiday vibe, while dramatic printed designs are a key component of contemporary urban looks. Which ones will you go for?