I use Delta plastic half-clips on my off-road and commuter bikes. I recently switched from Deltas to strapped on my road bike, and the Deltas were functionally about the same as strapped clips with loose straps. One warning, Deltas (and I would guess, other half-clips) don't work as well with shoes that have a tall toe box. You probably want to avoid combining half-clips with mesh tennis shoes that have a plastic 'bumper' around the toe box. Besides that, they work great!