Cyclists love the speed and convenience of CO2 inflators, but anyone who’s used one knows just how cold the cartridge becomes. The Positz CO2 Safety Sheath is a simple insulating sleeve that fits over a 16g CO2 cartridge, helping protect your hands from the freezing metal while repairing a flat tyre quickly and comfortably.

Whether you’re commuting, racing, bikepacking or heading out on weekend cycling adventures, this lightweight sleeve is a worthwhile addition to your puncture repair kit. It takes up virtually no space in your saddle bag or tool bottle, yet makes roadside tyre inflation far more comfortable when every second counts.

Keep Your Hands & Fingers Protected During Inflation

As CO2 escapes from the cartridge, the metal body rapidly drops to an extremely low temperature. The neoprene sleeve creates an insulating layer between your hand and the cartridge, helping reduce the risk of freeze burn and making it much more comfortable to hold while inflating your tyre.

Lightweight Insurance for Every Flat Repair Kit

Weighing only around 4 grams, the sleeve adds almost nothing to your kit but can make a big difference when fixing a puncture. Keep one permanently fitted to your spare cartridge or carry a spare in your saddle bag so you’re always prepared.

Universal Compatibility with Most CO2 16g Cartridges

Designed for standard 16g CO2 cartridges, the sleeve works with nearly all brands of threaded CO2 cartridges. Some cyclists have also found it can sometimes stretch over 25g cartridges, although the intended fit is for 16g cartridges.

Reusable and Easy to Carry

The neoprene construction is flexible enough for repeated use and provides excellent grip during inflation. Because the sleeve fits tightly and contracts in cold temperatures, it can occasionally tear when removed after use, making it a sensible idea to carry a spare if CO2 inflation is part of your regular cycling setup.

Item Specifications

• Designed for: 16g CO2 cartridges
• Compatibility: Fits most brands of threaded CO2 inflators
• Material: Neoprene
• Colour: Black with white Positz logo
• Weight: Approx. 4g each
• Dimensions: Approx. 88mm x 40mm (laid flat)
• Reusable: Yes
• Package includes: 1 x CO2 safety sheath only
• CO2 cartridges and inflator not included