I bought this strap to replace the standard resin strap on my Casio G-Shock square (GWM5610U). I wanted silicone because it is naturally water resistant and would not soak up sweat and moisture, which fabric straps do and that doesn't smell great after 30 or so wet/dry cycles. This strap ended up being the PERFECT strap for my G-Shock. It's SOO smooth to the touch, soft/supple, yet still thick enough not to feel weak or flimsy. The two-tone color style leaves a red line along the edges of the strap to compliment the red line in the dial of my G-Shock, so that's an added bit of artistic fashion. Go me. Anyway, I've been wearing this strap for about five days now and I'm still loving it. It's so much more comfortable than the stock strap, and it's closely-spaced adjustment holes allow for more precise sizing. I would definitely recommend this to anyone looking for an active-wear watch strap.