Constructed of 3.5mm neoprene for warmth and flexibility. Cleated boot foot with 200 grams of Thinsulate for warmth and sure footed traction. Heavy duty suspenders with neoprene comfort pad. Oversized D-rings for accessories. Reinforced knee pads. Brown. Whether you're fishing a stream, stalking the flats, working the surf or trolling the oceans, Calcutta fishing products are developed by avid fishermen to perform in any environment.