Mount To The NRS ClampIt™

The Big Water Case & Fly Box can mount directly to your NRS ClampIt, making it easy to put this box anywhere on a raft rowing frame.

Slip Mount Bracket

Mount the Big Water Case to your skiff, boat or practically anything else with Trxstle's own Slip Mount bracket. The slip mount also fits perfectly on your bicycle's water bottle cage so you can bring your essentials while riding to your destination.

Strap It Down

Use Trxstle Utility Straps to securely mount the Big Water Case to any raft tube, frame, your waist, really anywhere. The double-ended retention makes it easy to use the BWC while strapped down and prevents it from flopping around on rough water.

Configurable Storage

Make the BWC function the way you want in seconds using the velcro style attachments. Choose between the included fly foam insert, wallet and cell phone holding insert, and mesh bag insert. Mix and match to create the box you need.

Overbuilt Durability

Waterproof, dustproof and shockproof, with a complete O-ring seal. And yes, its buoyant.

Customer Reviews

Based on 18 reviews
Terry Dyksinski
Merry Christmas

I purchased two of the Ultimate Fly Fishing Case for Christmas presents. They are top quality and very useful. Can't wait to see my son's response when he opens this years Christmas gift. Oh, and I kept one for myself. I can't wait to get on the water and use it. Trxstle has such great stuff.

Great fly box

Love the fly box. Even more, I like the mounting feature because I can’t ‘kick it overboard’ anymore without work on my part. Wish everything in life was this easy. :)


Very innovative and great quality product.