Tall gaiters cover a different area from the small cuffs used around some running shoes. The Outdoor Research Insect Shield Rocky Mountain High Gaiter II is worth comparing when you specifically want lower-leg coverage as part of the footwear setup, with Insect Shield identified in the model name.

I'd read the current product instructions for the treatment and its care requirements. A treated garment doesn't justify assuming that bites cannot happen or abandoning other suitable precautions.

The Model's Relevant Identity

High-gaiter format.
Insect Shield product designation.
Rocky Mountain High Gaiter II line.

Verify the actual height, size, closure, and underfoot attachment. The footwear you already own is part of this purchase, since the gaiter has to sit correctly around it.

More Coverage Needs a Better Fit

Try bending the ankle and walking up a step. A tall gaiter shouldn't become a constant adjustment around the calf or crowd the top of the boot. Check it with the trousers you intend to wear rather than assume a separate size label settles the combination.

The high format can be useful when that extra lower-leg coverage is the objective. If you only want a small barrier near a low shoe opening, a shorter accessory may be more convenient.

The Reason I'd Choose It

I'd compare this model when tall gaiters suit the terrain and the documented treatment is a relevant extra. I'd want the attachment arrangement and care directions to be simple enough for regular use.

Don't turn the product name into unverified rain or snow performance claims; read those features separately. The useful purchase is a gaiter that fits the boot and leg well, with the exact coverage and treatment serving your outing rather than just adding another technical item to the clothing list.