Details Adelio Mens and Womens 7 mm thermal lined DeluxeRound Toe Booties.The 7 mm Deluxe boot was designed with Warmth and comfort to be the main priority keeping you in the water for longer staying warmerSize reference in US shoe size – 100% quad flex Japanese limestone infused neoprene – Thermal banded plush lining with quick dry properties – GBS Seams – Tatex outer liquid seal – Tapered gusset entry point – Tension strap – 3 Months warranty for date of purchase on faulty defects