Following a brief look earlier this week, iSkin today announced the release of its SiLo case for the first-generation iPod nano. The SiLo ($50) offers a dual-layer design with a two-tone leather exterior and an inner silicone layer. The case features integrated Click Wheel protection, a rear belt loop, a removable mini vanity mirror, and a removable hand strap. The SiLo can be customized with different color iSkin slims. iSkin said an updated version of the SiLo for second-generation nanos will be available soon.