Portable Elastic Diving Bottle Sleeve

A purpose-built, portable bottle sleeve using elastic diving material for adaptive fit and lasting comfort. Available in five precise sizes: 15.5 × 6.5 cm (420 ml), 18.5 × 6.8 cm (550 ml), 19 × 8 cm (750 ml), 21 × 8 cm (1000 ml), and 23 × 8 cm (1500 ml). Each unit is individually cut and stitched to maintain dimensional accuracy. The rope strap is fixed at optimal tension for ease of use and balance, while the soft handle zone distributes weight evenly across fingers. Material is inherently resistant to UV fading and mild moisture, supporting indoor and outdoor longevity. Compatible with cylindrical and slightly tapered bottles — including popular UK-standard 750 ml and 1 L formats — and designed to retain shape after repeated compression in backpacks or tote bags.