Below is a general manufacturer product group description. Please note the information below is not item specific. Item specifics are above in product details.

If a traditional looking hose is your choice, Russell ProClassic II is the answer. ProClassic II hose features an all-black nylon fiber braided outer cover over a Chlorinated Polyethylene (CPE) synthetic rubber inner line for abrasion resistance. The CPE inner liner incorporates a bonded multi-braid stainless wire that improves bend radius with less possibility of collapsing when routing hoses in tight areas.
ProClassic II hose has a maximum working pressure rate at 350 psi and is safe for use with fuel, oil and antifreeze. To compliment this new hose, we have a complete line of ProClassic black/silver and NEW ProClassic II all black anodized hose ends and adapter fittings available. For competition applications where reduced weight is needed, use our lightweight ProClassic Crimp-On hose ends.
RUSSELL PERFORMANCE PROCLASSIC II BLACK HOSE

CPE inner liner is supported by a multi-wire stainless braid to increase flexibility
Hose is rated at 350 psi
Your choice of Full Flow Hose ends, non-swivel, swivel and proclassic crimp-on availale in four finishes
Use same cutting procedure as braided hoses
Available in -4 thru -16 sizes & up to 500’ length