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UltrAspire 625ml Soft Flask with Locking Cap

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Description

UltrAspire 625ml Soft Flask with Locking Cap

625ml · Locking 28mm cap · ~34g

The UltrAspire 625ml Soft Flask provides more hydration capacity than a standard 500ml flask without moving to the taller 800ml size. Its flexible, collapsible body slides into compatible running vest, backpack and waist-pack pockets and compresses as fluid is consumed.

The updated low-profile 28mm locking cap helps prevent accidental leaks while reducing the amount of cap hardware against the body. The narrower opening also allows the top of the flask to remain relatively compact, although it requires more care when adding drink powder than a wide 42mm opening.

At 625ml, it provides a useful intermediate capacity where 500ml is not quite enough. For greater capacity and a wider 42mm opening, see the UltrAspire 800ml Soft Flask with Locking Cap.

Features

625ml capacity: provides 125ml more fluid than a standard 500ml flask while remaining smaller than the 800ml option.
Locking 28mm cap: helps prevent accidental flow or leaks while the flask is being carried.
Low-profile cap: reduces protruding hardware where the flask sits against the body in a running vest or waist pack.
Soft collapsible body: compresses as fluid is consumed and allows air to be expelled to help reduce sloshing.
Flexible shape: designed to slide into and out of compatible running vest, backpack and waist-pack pockets.
HydraPak collaboration: developed by UltrAspire in collaboration with HydraPak.
PVC and BPA free.

Specifications

Capacity: 625ml

Weight: ~34g / 1.2oz

Opening: 28mm

Cap: Locking

Dimensions: 11 × 4 × 2in

Construction: Flexible, collapsible soft flask

PVC free: Yes

BPA free: Yes

Compatibility

The 625ml flask uses a 28mm opening, so it should not be assumed to accept UltrAspire accessories designed for the 42mm-opening soft flasks.

As with any higher-capacity flask, check the available pocket height, width and retention system when using it as a replacement bottle. Its 625ml capacity makes it larger than a conventional 500ml flask, and nominal capacity alone does not guarantee fit.

Need help choosing?

Not sure which bottle or soft flask is right for your vest and hydration setup? See our Running Bottles & Soft Flasks Guide.

For help comparing the UltrAspire range, see our UltrAspire Bottle Guide.

If you are unsure about fit, capacity or whether this product is suitable for what you need, get in touch for straightforward advice.