The Fourth Element Rec Fins are the first scuba diving fins to be made from recycled post-consumer plastic waste. With a fully recycled plastic blade, the Rec Fins deliver great diving performance with much lower impact on the environment. The classic 4 channel design generates thrust on both the down and upstroke of the fin, whilst the stiffening ribs ensure excellent control, making this the perfect combination of efficiency and eco-consciousness, minimizing your fin print on the ocean. The blade and foot pocket are made from 100% recycled plastic (recycled polypropylene and recycled thermoplastic rubber). Fins come packaged in zero plastic. Adjustable silicone heel strap on scuba fin provides 6 points of adjustment and has a large finger loop to aid in easy donning and doffing. Soft foot pocket adds comfort while finning. Fins are available in multiple sizes.