HydraPak PocketFlask 500ml - Ultra-Low Profile Soft Flask - Locking Cap

Sometimes you want to head out for a quick loop around the Public Gardens or a fast mile on the boardwalk without the bulk of a full vest or a handheld bottle. The HydraPak PocketFlask 500ml is the minimalist’s dream—engineered to be their lowest profile flask yet. Designed specifically to slip into the snuggest running belts and the leanest vest pockets, it stays out of your way until you need it. The innovative pinch-welded bottom gives it a tapered shape that slides into tight mesh without a fight, while the low-diameter locking cap ensures it sits flat against your body with zero "pokes" or irritation. It’s hydration that’s meant to be felt only when you're drinking, not while you're moving.

• Lowest Profile Design: The slimmest flask in the HydraPak lineup, specifically contoured to fit inside waist belts and high-tension mesh pockets without creating bulk.
• 28mm Locking Cap: A secure, thumb-activated locking mechanism that allows for easy one-handed operation while preventing accidental leaks or drips in your pocket.
• Tapered Pinch-Welded Bottom: Unlike flat-bottom flasks, the tapered weld allows this bottle to slide effortlessly into narrow sleeves even when your gear is under tension.
• Comfort-First Engineering: The low-diameter cap and soft TPU construction eliminate the hard pressure points often found in traditional flasks, ensuring a distraction-free carry.
• Ultra-Lightweight TPU: Made of abrasion-resistant TPU that collapses completely as you drink, leaving you with a tiny piece of material that tucks away easily when empty.

Best For

• The Effort: Short to mid-distance road runs, boardwalk sessions, and minimal trail loops.
• The Goal: Stealthy, comfortable hydration that fits perfectly in a running belt or small waist pack.
• The Conditions: High-intensity efforts where every gram and every inch of bounce-free stability matters.

Technical Specifications

• Capacity: 500 ml / 17 fl oz
• Cap Size: 28 mm Locking Thumb-Cap
• Construction: Pinch-Welded Tapered Bottom
• Material: 100% BPA & PVC Free TPU
• Sustainability: Beyond Lifetime Guarantee; Dishwasher safe (top rack)