Please kindly refer to our suggested chest and our actual measurement on the picture, and rather than follow the Amazon's "Size Chart"<br> Tight Fitting,like a second skin. If you prefer the Regular-fitting,We recommend go up 1 size<br><br> Neleus was born in 2008 ,with its unique design concept, excellent quality and comfortable clipping, has gain the crazy love from the clients.<br> As the most energetic brand, Neleus is committed to provide the most innovative and price-friendly sport goods. <br> Technological quality is the priority of the company's products. <br><br>