On the guestlist for *the* upcoming nuptials of the year? Get your look sorted with our edit of men's wedding guest outfits and attire, ft. everything from structured suits and co-ord pants to pocket squares, bow ties and formal footwear guaranteed to have all eyes on you come the big day. Filter by ASOS DESIGN for men's wedding-guest attire that practically says 'I do' (think classic monochromes, jewel-toned navy, laid-back beige and versatile check designs as standard). Wool-mix three-piece suits keep you cosy in the winter, while breathable linens make summer wedding-guest outfit shopping a breeze. For accessories, the perfect pair of shoes, statement shirts and showpieces, it's gotta be menswear OGs Topman,River Island and Noak. Scroll to find your plus-one now.