Crocs comfort Level 2. Rise and grind with the On The Clock Work Slip-On from Crocs! Calling all baristas, restaurant servers, and healthcare and service industry workers of every stripe. Synthetic upper. Enclosed toe and heel meet workplace standards. The fit is relaxed, with tapered fit in the back of the heel for a secured fit. Enhanced arch support for additional comfort. Crocs Lock slip-resistant treads. Dual Crocs Comfort: contoured molded drop-in footbeds with moisture-wicking liners. ASTM F2913-11 tested, CE Certified. Meets or exceeds EN ISO 20347:2012, OB, SRC. TR (EVA) outsole for all-day wear. Imported. Measurements: Weight: 11 oz Product measurements were taken using size Mens 11, Womens 13, width Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.