ROCHET No. 502 Buffalo Grain Calf Fine Leather Straps, Aerocomfort Line (Anti Allergic, 100% Bio) Size: 10mm~22mm Available In: Black, Brown, Tan, Navy Blue, Grey and Red ROCHET leather bands has come up with an exclusive and revolutionary lining (25% less skin contact) and duty selected components to avoid any harm to skin (without chrome titanium tanning, water-based varnish solvent free, nickle-free aluminum buckle....), the Aeroconfort line is high recommended for the most allergic persons. Antiperspirant with perforations for improved skin ventilation, square padded leather bands. Compatible with any watch (traditional or smart watch) that uses standard 18mm, 20mm or 22mm spring bars. To determine proper width for your watch, measure the width where current band attaches to the watch head. A few common compatible smart watch widths: -Asus Zenwatch 2 1.63" :: 22mm width -Asus Zenwatch 2 1.45" :: 18mm width -Fossil Q Tailor :: 18mm -Q Gazer :: 20mm -Q Founder 2.0 / Marshal / Wander / Crewmaster :: 22mm-Q Accomplice / Neely :: 16mm -Huawei Watch :: 18mm width -Huawei Watch 2 :: 20mm width -Huawei Watch 2 Classic :: 22mm width -Moto 360 2nd Gen 46mm :: 22mm width -Moto 360 2nd Gen Men's 42mm :: 20mm width-Most Pebbles :: 22mm width -LG Watch, Urbane and R :: 22mm width -LG Watch Style :: 18mm width - Gear S2 Classic :: 20mm width - Gear S3 Classic or Frontier :: 22mm width -Galaxy Watch 42mm :: 20mm width -Galaxy Watch 46mm :: 22mm width - Gear Sport :: 20mm width Ticwatch E :: 20mmTicwatch 2 :: 20mm-Activité :: 18mm width -Steel HR 36mm :: 18mm width -Steel HR 40mm :: 20mm width They will also fit hundreds of other traditional watches with standard 18mm, 20mm or 22mm lug widths.