Tech Specs:

Material:

Pthalate-free TPE-coated tarpaulin 

Volume:

[XS] 305cu in (5L); [S] 549cu in (9L); [M] 1098cu in (18L); [L] 2014cu in (33L) 

Bag Dimensions:

[XS] 8 x 9.5 x 3.5in (20 x 24 x 9cm; [S] 10 x 11.5 x 4.5in (25 x 29 x 11cm); [M] 13.5 x 15 x 5in (34 x 38 x 13cm); [L] 14.5 x 18 x 6in (37 x 45 x 15cm) 

Laptop Pocket Dimensions:

[Med, Large] up to 14.5in; [Large] up to 17in 

Shoulder Strap:

Yes, adjustable 

Access Types:

Top flap 

Pockets:

Yes, internal 

Weight:

[XS] 14oz, (397g); [S] 1lb 3oz (539g); [M] 2lb (907g); [L] 2lb 8oz (1134g) 

Recommended Use:

Commuting, brick-hauling, door-stopping 

Manufacturer Warranty:

Lifetime