HTP-016 Soft Flask 500ml Key Features Ultra-Lightweight Design: Weighs a mere 50g, vanishingly light against traditional bottles. Collapsible & Compact: Flattens when empty, packing down to save critical pack space. High-Flow Bite Valve: Auto-sealing, leak-proof silicone mouthpiece for fast, effortless, drip-free drinking. Wide Mouth Opening: Easy filling, cleaning, and adding ice cubes; compatible with 42mm caps. BPA & PVC Free: Food-safe construction ensures pure, untainted water taste. Trail-Tested Durability: Tear-resistant TPU stands up to abrasion, cold, and long-distance use. Specifications Volume: 500ml / 17 fl oz Material: Thermoplastic Polyurethane (TPU), Silicone Weight: 50g / 1.76 oz Dimensions: 29 x 9 cm (full) | 0.5 cm (flat) Cap Size: 42mm Temperature Range: -20°C to 50°C HTP-008 Soft flask 500ml