Size : M - MEDIUM-calvin klein Underwear understands that not all fabrics work well for every occasion - this sampler pack has three different types of boxer briefs to cover all the bases. The microfibre pair is really sleek and breathable, so you can treat it like activewear, while the stretch-cotton style is great for every day and the modal and cotton-blend version is so comfortable to sleep in. Each one has a supportive fit and elasticated logo-jacquard waistband. Authenticity is the foundation of our business and every item we sell is checked by our team of experts. Our authenticators are the most experienced and highly trained in the industry. In addition, we only purchase our products from trustworthy ,authorized suppliers or brand owners- distributors .We have one of the most exclu.