Company or website name

Fit Theory

Do you want any slogans or taglines on your logo?

Your Level, Your Fitness, Your Theory

Describe your company and organization and target audience.

Personal training in a private studio. High end clientele.

The design should have the following:

I am open to all ideas! I want something that is eye catching, yet simple to be used long term on cards and swag. Not too gym-like, cutesy, or obvious like dumbbells, although an abstract like shape stemming from a shape in a gym would be fine.
I was originally thinking a circle or oblong circle with an "f" and a "t". The cross bar of the "t" and "f" align, and the curve of the "f" curves along the top of the circle...but again, am open to other ideas as well.

This logo will be used for:

Print (business cards, letterheads, brochures etc.)
Online (website, online advertising, banner ads etc.)
Merchandise (mugs, t-shirts etc.)
Signs (including shops, billboards etc.)

We do not want this in the entries:

No pink, orange, neon, purple. I like classic gray, green, white or black or combo. Nothing too obviously gym-like.

This is the style of logo the user would like.

Colors to use in the design:

grey, white, black and green, but not green and black alone.