@knot_so_hard: Mesh Shell Stitch Crochet Tumbler Sleeve | Easy Insulated Cup Holder Crochet a stylish Mesh Shell Stitch tumbler sleeve using 4 ply milk cotton yarn and a 2.5 mm crochet hook. The double-layer design adds insulation and protection while keeping your tumbler beautiful. #CrochetTumblerSleeve #MeshShellStitch #CrochetTutorial #MilkCottonYarn #CrochetIdeas