Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 Kettlebell Mountain Wildflower Tumbler $34.00 A 20 oz insulated straw tumbler for the gym and the school run. From Peak Season Living. Add To Cart Added! A 20 oz insulated straw tumbler for the gym and the school run. From Peak Season Living.