Silicone material with triangle slits holds flies tighter and does not tear like regular foam. This rugged rubber does not create hook memory holes so it securely holds a variety of fly sizes. Durable, no water absorption and reusable silicone is the ultimate material for your fly storage system.

Medium = 13.5 x 9.5 x 1.5 cm

Large = 18.5 x 10 x 1.5 cm