Killer Chocolate Perdigon has a brown body of holographic tinsel that matches many species darker nymphs in the river.

Cold water or rivers colored by melting ice!

The idea with this fly is to have a small and heavy fly in terms of short body that get down in the water column quickly.

The Funky Shrimp is a grayling specific fly for all water conditions.

The French Nymph is one of the main ‘go to’ Euro Nymph patterns for trout.

A spicy variant of the "Prince" with tungsten bead and pearl wings!

The Czech Weapon Depthfinder has a larger bead and is more heavy than the standard Czech Weapon.

The Czech Weapon is a fly that works extremely well during the late summer and autumn for both trout and grayling.

This fly, the Copper Dreams Perdigon is a true allrounder and a generic mayfly nymph that works all season says Javier Peña.

The Bootlace Orange Tag is a great pattern for those looking to target grayling.

A heavy caddis larvae that get you deep down fast!

A leading pattern for any angler planning to fish the Euro Nymphing method.

Baetis Quill Perdigon is a true allrounder for river fishing where nymphs of the family Baetidae are the most common.

This type of ant floats heavily and is easy prey for the fish. The fly should hang on the wing and front body and signal that it is trappet in the surface.

This type of ant floats heavily and is easy prey for the fish. The fly should hang on the wing and front body and signal that it is trappet in the surface.

Antonio's midge is a great all-round emerger style pattern that can imitate midges and smaller, dark mayflies.