When it comes to designing comfortable performance clothing for the outdoors no one has done it longer and better than Patagonia. Their Swimwear is top notch and will stand up to the abuse of a river trip. The Print Sunamee Bottoms have full seat coverage, lined front and fits straight across the hips with a regular rise. All are made from a blend of 82% nylon and 18% spandex.
XS(0-2, Waist:24-25, hip:34.5-35.5),
S(4-6, waist:26-27, hip:36.5-37.5),
M(8-10, waist:28-29, hip:38.5-39.5),
L(12-14, waist:30.5-32, hip:41-42.5),
XL(16, waist:33.5, hip:44).