Designed in Minnesota · In development

Warm hands. Fast hooksets.

CastWarm is a heated sleeve that slips over the handle of the rod you already own, so your grip stays warm and ready when the bite comes.

Launching on crowdfunding · Waitlist members hear first
The problem

Cold hands cost you fish.

Anyone who has sat over a hole at first light knows the routine: gloves off to feel the line, fingers numb in minutes, hands in your pockets right when the rod tip twitches.

01

Numb grip

A frozen handle pulls heat out of your hand. Feel and control go first.

02

Missed bites

Light winter bites are subtle. Stiff fingers react late, or not at all.

03

Shorter days

When your hands give out, the trip ends early, no matter how good the fishing is.

CastWarm heated sleeve concept on a cork rod handle
The solution

Heat, right where you hold it.

CastWarm puts gentle warmth directly on the rod handle, the one thing your hand touches all day. Your hand stays warmer, your grip stays sure, and you stay ready.

No new rod. No bulky mittens. It's designed to fit the gear you already trust.

Image shows a design concept. The final product may differ.

Features

Built for the hardwater.

Fits your rod

A sleeve designed to go over your rod's existing handle. No tools, no new rod.

Warm grip

Low-profile heating built into the sleeve, right under your palm.

Rechargeable Planned

A compact rechargeable battery pod, so you're not hunting for batteries on the ice.

Heat settings Planned

Simple controls to match the heat to the day, from a mild morning to a bitter one.

How it works

On the rod in seconds.

Slide it on

Fit the sleeve over your rod handle and snug it in place.

Power up

Connect the battery pod and switch on the heat.

Fish longer

Keep a warm, confident grip, and be ready when the tip moves.

Gloved hand holding a rod with a heated sleeve on a frozen lake
Built in Minnesota

Made by someone who fishes in it.

"Up here, winter is fishing season. I got tired of choosing between feeling my line and feeling my fingers, so I started building something better."

Robert Zibrowski, Founder · Zibrowski Innovations LLC, Park Rapids, MN

FAQ

Questions, answered.

Is CastWarm available now?

Not yet. CastWarm is in development, and we're building and testing prototypes. We plan to launch through a crowdfunding campaign. Join the list to hear first.

Will it fit my rod?

CastWarm is being designed to fit common rod handles, ice rods included. Exact fit details will be shared before launch.

How much will it cost?

Pricing hasn't been set yet. Waitlist members will get the details, and any early-backer offers, before anyone else.

How long will the battery last?

We'll publish battery performance once testing is done. We won't guess.

What will you do with my email?

We'll only use it for CastWarm launch updates. No spam, and you can unsubscribe any time.

Early access

Be first on the ice with CastWarm.

Join the waitlist for prototype updates and the first word when our crowdfunding campaign goes live.

You're on the list. We'll be in touch.

Launch updates only. Unsubscribe anytime.