When your gel flasks become disgustingly encrusted with dried gel and mold, just replace them with these new quality flasks and don't worry about cleaning them. As you can see in the picture, the flask is curved at the top, so that the push-pull cap doesn't rub against the body when it is being worn on a gel belt. This was a complaint of many users of such belts in the past. These bottles are made of semi-transparent flexible low-density PE plastic. The caps are US-standard-sized and can be used as replacements for many of the common gel and water flasks on the market (diameter of 33mm (1.3") measured on the outside of the threads). This flask will fit the belts and carriers sold by many other brands, like Ultimate Directions®, Lava belt, TNi and Fuelbelt®, which use a similar 4oz (140ml) flask. These flasks are brand new and seal 100% with no air/water leakage through the seal. We also sell caps for these separately.

• Clear plastic bottle, offset neck, with blue/yellow screw cap.
• No printing.
• Fits standard belts and holders for 4 oz. flasks.
• Price is for each, Packaged 4/bag.
• One 4 Oz. Curved Replacement Gel Flask with cap.
• Size: 3" x 1.5" x 5" high (76x38x123 mm),
• Weight for one bottle and cap is 0.97 oz. (26 gm.)
• Material: soft semi-transparent low-density PE (polyethelene) plastic, which can be recycled.
• Volume: 4 ounces (177ml).
• Fits standard belts and holders for 4 oz. flasks.
• Price is for each, Packaged 4/bag.
• One 4 Oz. Curved Replacement Gel Flask with cap.
• Size: 3" x 1.5" x 5" high (76x38x123 mm)
• Weight for one bottle and cap is 0.97 oz. (26 gm.)
• Material: soft semi-transparent low-density PE (polyethelene) plastic, which can be recycled.
• Volume: 4 ounces (177ml).
• Smell: These bottles have NO chemical smell or taste, unlike many cheaper bottles.