Mares She Dives Thermo Guard 0.5mm Short Sleeve Body Core Protection for All Water Sports Offering more body core protection than a standard rash guard, the Thermo Guard is perfect underneath your suit for better heat retention during diving. Thanks to its thermal & UV protection, it's also ideal for snorkeling, surfing, kayaking & for any other water-sports use. 0.5mm super elastic neoprene with Metalite coating on the inside conducts heat, is easy to put on, & provides UV protection Flat stitch for comfortable contact on your skin Sizing Bust (inch) Waist (inch) Height (inch) UK Dress Size Chest (cm) Waist (cm) Height (cm) UK Dress Size Size 1 / Extra Small 30-32 22-24 5'3" 6-8 76-81 56-61 160 6-8 Size 2 / Small 33-34 24-26 5'5" 8-10 84-86 61-66 165 8-10 Size 3 / Medium 34-36 26-28 5'7" 10-12 86-92 66-71 170 10-12 Size 4 / Large 36-38 28-30 5'9" 12-14 92-96 71-76 175 12-14 Size 5 / Extra Large 38-40 30-32 5'11" 14-16 96-102 76-81 180 14-16 * Please note not all sizes are available in all models