Fly Fishing^ Uni Big Fly Thread – Your Premium Fishing Gear Store Rods Lines Baits Accessories

Extremely strong, lies flat without the slickness of Kevlar. While it’s the heaviest of conventional (i.e., not GSP or kevlar) thread at 400 denier, it is also the strongest with a tested breaking strength of 100 oz. Use for saltwater or bass flies. 80 yd./spool.