Product
Tech

Whippet Mountain Gear uses X-Pac materials in the construction of our products.
It is light, waterproof, durable and very abrasion resistant. It isn’t bulletproof though, so if you really try you can put a tear or hole in it and water can creep through seams and stitching.
As an example, compared to burly 1000 denier Cordura, VX21 Cire is half the weight but has twice the abrasion resistance and is totally waterproof.
Our volume data are real and accurate, obtained by filling packs and bags with measured amounts of water.
X-Pac® is a brand of Dimension-Polyant.
Designed to Perform.
From Sea to Summit.
Inspired by advanced sailcloth technology, X-Pac® performance laminates are lightweight, durable, and 100% waterproof.
X4 Pack Fabrics
X4 laminates feature an innovative four-layer construction that’s rugged, flexible, 100% waterproof, and features our patented X PLY® fiber reinforcement technology. A lightweight taffeta backing provides enhanced stitch-hold.
We use the following X-Pac X4 Fabrics in our product lines:
VX21
Our most utilised laminated pack fabric, X-Pac® VX21 is 100% climate neutral. The low-stretch, waterproof construction, featuring 210-denier face fabric, provides an ideal balance of weight and durability.
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Content
60% Nylon
40% Polyester
Construction
- DWR
- 210 denier Plain Weave Nylon face
- 0.25 mil polyester film
- Black post-consumer recycled polyester X-PLY® at 22°
- 50 denier polyester taffeta backing
- Tear Strength Warp 108.5 N / 24.4 LBS
- Fill 76.5 N / 17.2 LBS Weight 210.0 g/m²
- 6.2 oz/yd² Waterproof 13.8+ bar
- 200+ psi Width 150.0 cm
- 59.0 inch Abrasion ASTM 3884 500 cycles
VX21 CIRÉ
Specially conditioned nylon for exceptional abrasion resistance and a glossy finish.
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Content
60% Nylon
40% Polyester
Construction
- DWR
- 210 denier Nylon
- Black post-consumer recycled polyester X-PLY® at 22°
- 0.25 mil polyester film
- 50 denier polyester backing
- Tear Strength Warp 108.5 N / 24.4 LBS
- Fill 76.5 N / 17.2 LBS Weight 203.4 g/m²
- 6.0 oz/yd² Waterproof 13.8+ bar
- 200+ psi Width 150.0 cm
- 59.0 inch Abrasion ASTM 3884 2000 cycles
VX07 RIPSTOP SOFT
Our most popular mid-weight 70D high-performance pack material with an added ripstop pattern in the face. Along with the soft or silent laminate construction, this combination provides an ideal balance of tear resistance, compressibility, and durability.
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Content
60% Nylon
40% Polyester
Construction
- DWR
- 70 denier, Ripstop Nylon face
- Black post-consumer recycled polyester X-PLY® at 22°
- 50 denier polyester taffeta backing
- Tear Strength Warp 93.0 N / 20.9 LBS
- Fill 77.9 N / 17.5 LBS Weight 158.0 g/m²
- 4.7 oz/yd² Waterproof 13.8+ bar
- 200+ psi Width 150.0 cm
- 59.0 inch