CamelBak Long Neck 3L Hydration Reservoir — 100oz Tactical Water Bladder with Big Bite Valve and HydroLock

The CamelBak Long Neck 3L Hydration Reservoir is a rugged, legacy-compatible water bladder built to fit Long Neck tactical carriers and deliver dependable, drip-free hydration in demanding environments.

This 3-liter (100 oz) reservoir is engineered for users who rely on established Long Neck hydration systems — military, tactical, and legacy CamelBak packs — and need a hard-wearing, easy-to-maintain bladder that integrates with older carriers. Constructed from radio-frequency welded polyurethane and fitted with proven components like the Big Bite Valve and HydroLock lever, the design prioritizes durability, high flow, and simple one-handed operation while also addressing hygiene with HydroGuard technology.

How does this reservoir fit older tactical and military carriers?

The shape and Long Neck connection are intentionally made to match standard US Army hydration carriers and legacy CamelBak systems so you can continue using existing loadouts. No adapters are required for compatible carriers, preserving original fit and routing through older pack sleeves.

• Long Neck connector molded for legacy carrier sockets
• Dimensions designed to slide into traditional hydration sleeves
• Compatible with select older CamelBak packs and military-standard carriers

What materials and construction make it durable for heavy use?

The reservoir body uses radio-frequency welded polyurethane for strong seam integrity and flexible performance when filled or under load. This construction resists splitting and holds shape better during repeated use, transport, and pack compression.

• RF-welded seams for leak-resistant durability
• Polyurethane reservoir resists abrasion and repeated flexing
• Protected drink tube reduces wear from friction and UV exposure

How easy is it to drink from and control water flow in the field?

Hydration is simplified by the one-piece Big Bite Valve and the HydroLock lever. The valve provides high flow and self-seals after each sip, while the HydroLock lever lets you shut off or open the tube with one hand even when wearing gloves.

• High-flow Big Bite Valve for fast, efficient sips
• Self-sealing silicone valve reduces dripping and contamination risk
• HydroLock lever enables one-handed on/off control during operations

How does the reservoir help keep the interior cleaner between uses?

HydroGuard technology is embedded in the reservoir and tubing materials to help inhibit microbial growth on interior surfaces, reducing maintenance burden between cleanings. While not a substitute for regular washing, it supports fresher storage and easier care when compared to untreated bladders.

• HydroGuard-treated surfaces discourage bacterial buildup
• Materials chosen for easier flushing and drying after use
• Tube cover reduces contamination and UV damage to the drink line

Who is this for? The CamelBak Long Neck 3L Hydration Reservoir is aimed at users who must maintain legacy Long Neck hydration setups — service members, veterans, tactical operators, or outdoor enthusiasts who want a drop-in replacement bladder for older carriers. It also suits anyone needing a tough, high-capacity reservoir with one-handed flow control and features that ease cleaning and prolong service life. If you use Long Neck-compatible packs or operate in rugged conditions where a dependable, high-flow hydration source matters, this reservoir keeps your existing loadout functional and mission-ready.