The Calcutta Neoprene Chest Waders are constructed of 3.5mm neoprene for warmth and flexibility. The boot has 200 grams of Thinsulate insulation with a rugged cleated sole for better traction. The adjustable, built-in suspenders with a neoprene comfort pad keep the waders tight against your body and the reinforced knees add additional durability. These waders feature an oversized D-rings and a front cargo pocket to keep extra gear readily available.