# What is the best hiking backpack with a hydration system included? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What is the best hiking backpack with a hydration system included?

## Products

### Gregory Nano 22 H2O Hydration Pack
```yaml
product: gregory-nano-22-h2o-hydration-pack
brand: Gregory
price_gbp: 73.79
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 1 lb 3.4 oz
capacity: 22 L
material: 210-denier high-density nylon and 450-denier recycled polyester
number_of_pockets: 3 + main compartment
hydration_compatible: Yes, includes 3 L reservoir
```

- **Price:** £73.79 [^1]
- **Summary:** The Gregory Nano 22 H2O is a lightweight 22-liter hiking pack with a 3-liter included hydration reservoir, breathable backpanel, hipbelt, and multiple storage pockets. It suits day hikers who want ample gear capacity and hands-free hydration in a compact frameless design.
- **Ideal For:** This pack specifically suits hikers seeking a hydration system included because it provides 22 L of storage, a 3 L reservoir, hydration routing, and a weight of just 1 lb 3.4 oz.

### Teton Sports Oasis
```yaml
product: teton-sports-oasis
brand: Teton Sports
price_gbp: 40.6
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 2 lb or 2.5 lb
capacity: 18L or 22L
material: 100% Polyester 600D honeycomb ripstop and 100% Polyester 600D dobby ripstop
hydration_compatible: Yes, includes 2L or 3L bladder
```

- **Price:** £40.6 [^2]
- **Summary:** The Teton Sports Oasis is a durable hydration daypack available in 18L and 22L sizes, with an included water bladder, ventilated mesh, adjustable shoulder, chest, and waist straps, and a built-in rainfly cover. It suits hikers, bikers, and outdoor users who want generous storage and hydration for short hikes or day trips.
- **Ideal For:** The 18L Oasis is a strong fit for hikers seeking a hydration system included because it comes with a 2L bladder, weighs 2 lb, and provides multiple compartments plus a rainfly cover for day hikes.

---
## References & Sources
[^1]: REI, accessed 2026-09-01. https://www.rei.com/product/245913/gregory-nano-22-h2o-hydration-pack
[^2]: Teton Gear, accessed 2026-09-01. https://tetongear.com/products/oasis-hydration-packs