The XT has 150 grams of Thinsulate throughout the body and 120grams in the arms to keep the bulk down for bow hunters. The EL has 120 grams of a high end insulation throughout the body and 100 in the arms. Both garment have the same waterproof, windproof outer shell fabric. The XT has waterproof zippers and taped sewn seams making it 100% waterproof and windproof. The EL has regular heavy duty zippers with rain flaps and no taped sewn seams making it extremely water resistant. The XT has a built in head net, facemask, glove gaiters, rain hood and a fleece lined pass through hand muff, all designed to keep as much of your body heat contained as possible. The EL has the facemask and built in hand warmer however no glove gaiters nor head net. The XT has a pass through opening in the top/middle of the shoulder blades to feed your safety harness tether strap through and the EL allows the tether strap to feed out the back of the collar and through the two middle snaps of the rain hood should one have it on, up and in use. Both garments come with our full satisfaction guarantee allowing you to use the garment for one hunting season and return it for a full refund should it not meet or exceed your expectations.