This is my first high end kit after riding in team kits for decades. I'm 5'8 and 128 lbs with a 28/29" waist and 36/37" chest and tried the XS based on MAAP's size guide but it was VERY tight and so I exchanged for a S size and it's a better fit IMO. The quality seems high although time will tell in terms of wear - my Vermarc team clothing has been very durable. I really like the colors and design. One thing to note is that you should not expect MAAP to reply to any email or even phone inquiries if you have questions or issues. My emails on sizing or exchange reimbursement have gone unanswered - as has my phone call.