Rambler Bottle Sling in CharcoalThe Yeti Rambler Bottle Sling in Charcoal. This Bottle Sling is the simple solution to transporting your H20 hands free. That way you can eat snacks, skip rocks, or indulge your dog in a riveting round of fetch. You can even keep your cash and cards safe by sticking them in the Joey Pocket. Mount it to the HitchPoint Grid on any Hopper Soft Cooler (or the Camino Carryall Bag). But if youre looking to hike light, clip on the removable carrying strap,