COMFORTABLE COOKING. A soft cotton interior and cuff provide added comfort, as well as protection. TIGHT, SECURE HOLD. The seamless silicone is naturally non-slip and features raised grips, which help you maintain a tight, secure hold. MADE FROM LFGB-GRADE SILICONE. The gloves are connected with an extra-long sheet of hemmed fabric, which protects your wrists and lets you use each mitt independently.. USEFUL INFO: the gloves are certified to Regulation (EU) 2016/425, are heat resistant to 250C and include a 5-year guarantee. MasterClass Waterproof Silicone Grey & Black Double Oven Gloves